Mathematics Calculators
Solve arithmetic, percentages, algebra, geometry and statistics with focused calculators and worked methods.
Age CalculatorAge Calculator is used to determine a person's age based on their DOB or birthdate, typically providing the output in years, months, days, hours, and seconds.Amortized Loan CalculatorThis amortized loan calculator is a tool used to calculate the periodic payments on a loan that is repaid in regular instalments over a period of time,โฆAverage Weight CalculatorAverage weight calculator: Easily determine the per-item weight by inputting the total weight and number of items, supporting both kilograms and pounds.โฆAverage Percentage CalculatorCalculate the average percentage of marks with ease using this simple Average Percentage calculator. Input the number of subjects and their marks, andโฆAverage CalculatorCalculate the average online, total sum, and total count of a list of numbers with this simple online average calculator. Enter numbers, press 'Add' or hitโฆFuel Average CalculatorCalculate your vehicle's average fuel consumption with ease using this simple Fuel Consumption Calculator. Input your distance traveled and fuel used toโฆCircle CalculatorThis circle calculator is a tool that helps to calculate various properties of a circle such as radius, diameter, circumference, area, sector and segmentโฆEasy CalculatorThis is a simple calculator where you can apply all the functions on same values at a time.Algebra Calculator with StepsSolve linear and quadratic equations and systems, with exact answers and substitution checks.Algebra: Calculators, Formulas and PracticeChoose an algebra calculator, review formulas and identities, or practice with original worked questions and printable worksheets.Algebra FormulasReview algebra formulas for linear equations, quadratic roots, exponents and factoring, with conditions and worked examples.Algebraic Expression CalculatorSimplify and expand polynomial expressions, combine like terms, and evaluate variables with exact fraction answers and working steps.Algebraic Identities and Identity CheckerReview square and cube identities, expand both sides, and check whether polynomial expressions form an identity.Algebraic Fractions CalculatorSimplify, add, subtract, multiply and divide algebraic fractions in x while keeping the original denominator restrictions.Free Printable Algebra WorksheetsCreate original algebra worksheets for equations, expressions, quadratics, identities and algebraic fractions. Print questions or a worked answer key.Algebra QuestionsPractice original algebra questions with answers and step-by-step solutions, from linear equations to identities and algebraic fractions.Fraction CalculatorAdvanced fraction calculator for all operations: addition, subtraction, multiplication, division. Simplify fractions, convert to decimals, work with mixedโฆHours CalculatorThis calculator that helps you convert between different units of time such as minutes, hours, days, weeks, and months, and also allows you to add orโฆLenght Unit Converter CalculatorThis calculator that helps you convert between different units of length such as inches, feet, yards, meters, kilometers, and more.Percentage CalculatorThis percentage calculator includes percentages, such as percentage of a number, increasing or decreasing a number by a certain percentage, or finding theโฆStudent Marks Percentage CalculatorQuickly and easily calculate your percentage of marks obtained with our student marks percentage calculator.Room Dimension CalculatorThis calculator that helps you calculate the dimensions of a room, including the length, width, and square footage, based on measurements of the room'sโฆScientific CalculatorOpen this calculator for a fast, private and easy calculation experience.Sooter to MM CalculatorSooter to mm calculator, sooter to inches, sooter to centimeter, sooter to meters, sooter to feet offered by OfficeCalculator.NetAdding Machine & Sum CalculatorLarge adding machine with 0/00 keys, paper tape, history, copy, paste, subtraction and keyboard support.Triangle CalculatorCalculate triangle area, perimeter and all three interior angles from three valid side lengths using Heronโs formula and the law of cosines.Unit Conversion CalculatorEngineering conversion calculator for all types of conversions like weight, air, speed, lenght etcWeight Unit Conversion CalculatorWeight Unit Conversion Calculator: A tool that allows users to convert weight measurements between different units, such as grams, ounces, pounds, andโฆLiquid Unit Conversion CalculatorThis calculator that helps you convert between different units of liquid measurement such as ounces, pints, quarts, gallons, and liters.Length Conversion CalculatorConvert lengths between common units such as inches, millimeters, centimeters, feet, yards, meters, kilometers, and miles.V-Belt Length CalculatorV-Belt Length Calculator and formula for calculation of v-belt sizes in inches, feets, centimeters. This v belt calculate will give you exact measurement ofโฆGuage to MM, Inches, Sooter CalculatorQuicly convert steel guage to mm, cm, microns, inches, and soot etc. Its a free tool to convert guage to other measurements.Final Grade Needed CalculatorCalculate the score needed on a final exam to reach a target overall course grade.Weighted Grade CalculatorCalculate a weighted course grade from multiple percentage scores and their assignment or category weights.Required Attendance CalculatorCalculate how many consecutive future classes you must attend to reach a target attendance percentage.Weighted Average CalculatorCalculate a general weighted average from a list of values and matching weights, with totals and unweighted mean for comparison.Marks Needed to Pass CalculatorCalculate the additional marks needed on remaining coursework or exams to reach a target passing percentage.Median, Mode and Range CalculatorCalculate median, mode, range, mean, count, minimum, and maximum from a list of numbers.Variance and Standard Deviation CalculatorCalculate population or sample variance, standard deviation, mean, and count from a numeric data set.Permutation Calculator (nPr)Calculate permutations nPr for choosing and arranging r items from n distinct items when order matters.Combination Calculator (nCr)Calculate combinations nCr for choosing r items from n distinct items when order does not matter.Z-Score CalculatorCalculate a z-score from a value, mean, and standard deviation, with an approximate standard-normal percentile.Scaling CalculatorScale any numeric value by a multiplier and see the equivalent percentage change and difference from the original value.โRatio Scaling CalculatorScale a ratio such as 16:9 to a new first value and calculate the proportional second value, scale multiplier and simplified ratio.โDividend and Divisor CalculatorDivide a dividend by a divisor entered in a selected number base and display decimal quotient, integer quotient, remainder and converted base values.โStandard Deviation CalculatorCalculate population or sample variance and standard deviation from a numeric dataset, along with count, mean, minimum and maximum.โ
Volume Calculators
Ellipsoid Volume CalculatorCalculate the exact geometric volume of an ellipsoid from its three semi-axis lengths, with equivalent sphere radius and approximate surface area for context.Sphere Volume CalculatorThis calculator that helps you calculate the volume of a sphere. It requires the input of the radius of the sphere, and it will calculate the volume of theโฆSpherical Cap Volume CalculatorCalculate the volume, base radius and curved surface area of a spherical cap from the parent sphere radius and cap height.Capsule Volume CalculatorCalculate the volume, surface area and total length of a geometric capsule using its radius and the length of the straight cylindrical section.Cone Volume CalculatorThis cone volume calculator is a tool used to calculate the total volume of a cone-shaped object. It takes the radius and height of the cone as input andโฆConical Frustum Volume CalculatorCalculate the volume, slant height and surface areas of a conical frustum from its two radii and perpendicular height.Cube Volume CalculatorThis cube volume calculator is a tool used to calculate the total volume of a cube-shaped object. It takes the length of one side of the cube as input andโฆCylinder Volume CalculatorThis cylinder volume calculator is a tool used to calculate the total volume of a cylinder-shaped object. It takes the radius of the base and the height ofโฆRectangular Tank Volume CalculatorUse the Rectangular Tank Volume Calculator online.Square Pyramid Volume CalculatorCalculate the volume, base area, slant height and total surface area of a right square pyramid from base side and perpendicular height.Tube Volume CalculatorCalculate the material volume, internal void volume, outer cylinder volume and cross-sectional material area of a hollow cylindrical tube.Dimension CalculatorDimension Calculator and dimension changer for instant volume calculations. Ideal for architects, DIY enthusiasts, and everyday users experience efficiencyโฆ
Area Calculators
Rectangle Area CalculatorThis calculator that helps you calculate the area of a rectangle, which is a four-sided polygon with four right angles, based on the length and width of theโฆSimple Triangle Area CalculatorTriangle Area Calculator: A mathematical tool that allows users to calculate the area of a triangle by inputting its measurements. A triangle is aโฆTrapezoid Area CalculatorCalculate trapezoid area, average base and base sum from the two parallel sides and perpendicular height.Circle Area CalculatorThis circle area calculator is a tool used to calculate the total area of a circle. It takes the radius of the circle as an input and returns the area valueโฆSector Area CalculatorCalculate the area, arc length and chord length of a circular sector from the circle radius and central angle in degrees.Parallelogram Area CalculatorCalculate parallelogram area from base and perpendicular height, with optional side length for perimeter and diagonal-related context.Ellipse Area CalculatorCalculate the area and approximate circumference of an ellipse from its semi-major and semi-minor axes.Triangle to Square Feet CalculatorTriangle to square feet calculator for free and online. This can calculate area with base and height, two sides and one angle, three sides, one side and twoโฆ
Surface Area Calculators
Ball Surface Area CalculatorCalculate the total surface area, diameter and great-circle circumference of a sphere from its radius in any consistent length unit.Cone Surface Area CalculatorCalculate slant height, lateral area and total surface area of a right circular cone from its radius and perpendicular height.Cube Surface Area CalculatorCalculate the total surface area, face area, volume, face diagonal and space diagonal of a cube from a single side length.Cylindrical Tank Surface Area CalculatorCalculate curved shell area, end-cap area and total closed surface area of a right circular cylindrical tank from its radius and length.Rectangular Tank Surface Area CalculatorThis calculator that helps you calculate the surface area of a rectangular tank, which is a container with a rectangular shape, based on the length, width,โฆCapsule Surface Area CalculatorCalculate the external surface area of a geometric capsule from its radius and straight cylindrical length, with total length and volume shown for context.Spherical Cap Surface Area CalculatorCalculate curved surface area, base radius, base area and total surface area of a spherical cap from sphere radius and cap height.Square Pyramid Surface Area CalculatorCalculate slant height, lateral area, base area and total surface area of a right square pyramid from base side and vertical height.Ellipsoid Surface Area CalculatorEstimate the surface area of a general ellipsoid from its three semi-axis lengths using the Knud Thomsen approximation, with volume shown for context.Conical Frustum Surface Area CalculatorCalculate the slant height, lateral area and total surface area of a conical frustum from the top radius, bottom radius and vertical height.
Science Calculators
Velocity CalculatorVelocity Calculator: helps to calculate the velocity of an object based on its distance and time.Dencity CalculatorDensity Calculator: helps to calculate the density of an object based on its mass and volume.Acceleration CalculatorThiscceleration Calculator: helps to calculate the acceleration of an object based on its final velocity and initial velocity and time.Distance CalculatorDistance Calculator: helps to calculate the distance an object has traveled based on its velocity and time.Time CalculatorTime Calculator physics helps to calculate the time it takes for an object to travel a certain distance at a certain speed.Speed CalculatorSpeed Calculator: helps to calculate the speed of an object based on its distance and time.Force CalculatorForce Calculator: helps to calculate the force exerted on an object based on its mass and acceleration.Kinetic Energy CalculatorKinetic Energy Calculator: helps to calculate the kinetic energy of an object based on its mass and velocity.Power CalculatorPower Calculator: helps to calculate the power of an object based on its work and time. You can calculate power of anything with this calculator.Trajectory CalculatorTrajectory Calculator: helps to calculate the trajectory of an object based on its initial velocity, angle and height.Work CalculatorWork Calculator: helps to calculate the work done on an object based on its force and distance.Momentum CalculatorMomentum Calculator: helps to calculate the momentum of an object based on its mass and velocity.Science CalculatorsThis collection of calculators that helps you perform various scientific calculations such as physics, chemistry, and mathematics calculations. It includesโฆ
Temperature Converter CalculatorTemperature Conversion Calculator: A tool that allows users to convert temperatures between different units of measurement, such as Celsius, Fahrenheit,โฆProportional Size CalculatorThis calculator that helps you calculate the new size of an image while maintaining its aspect ratio, based on the original size and the desired width orโฆAggregate Calculatorcalculator to calculate the aggregate (sum) of an array of numbers, with error handling and input validation for a valid array of numbers.
Best Uses of Mathematics Calculators
There are many uses for mathematics calculators, including:
Solving equations: Mathematics calculators can be used to solve a wide range of equations, including linear equations, quadratic equations, and systems of equations.
Performing statistical analyses: Mathematics calculators can be used to calculate statistical measures such as mean, median, mode, standard deviation, and more. This can be useful for data analysis and interpretation.
Calculating geometric figures: Mathematics calculators can be used to calculate the properties of geometric figures such as circles, triangles, and squares. This can be helpful for solving geometry problems and understanding geometric concepts.
Converting units: Mathematics calculators can be used to convert between different units of measure, such as meters to feet or pounds to kilograms.
Performing complex calculations: Mathematics calculators can be used to perform complex calculations that may be time-consuming or difficult to do by hand. This can be useful for a variety of applications, including scientific research and engineering.
Additional Mathematics Tool
These tools are included here so every public calculator can be discovered from a relevant category page.
Calculator Games
Practice arithmetic, number logic, money math, memory and numeric keypad speed with eight free browser games.
Play Calculator Games โStatistics & Education Calculators
New calculators for grades, GPA, probability, and sample-size planning.
GPA CalculatorCalculate credit-weighted GPA from course grade points and course credit values.Grade CalculatorCalculate grade percentage, common letter grade, and pass status from earned points, total points, and a passing target.Probability CalculatorCalculate simple event probability, complement, decimal probability, and odds from favorable and total equally likely outcomes.Sample Size CalculatorEstimate sample size for a population proportion using confidence level, margin of error, expected proportion, and optional finite population size.
Education & Statistics Calculators
New focused calculators added in the final roadmap batch.
CGPA CalculatorCalculate credit-weighted cumulative GPA/CGPA from multiple term GPAs and matching credit-hour totals.Exam Score CalculatorCalculate a net exam score and percentage from correct answers, incorrect answers, marks per correct answer, and optional negative marking.Study Time CalculatorEstimate available study hours from days remaining, planned study days per week, minutes per study day, and number of subjects.Margin of Error CalculatorEstimate a proportion margin of error from sample size, expected proportion, and a selected normal critical value.Confidence Interval CalculatorCalculate a z-based confidence interval for a mean from sample mean, standard deviation, sample size, and confidence level.Percentile CalculatorCalculate a requested percentile from a numeric data set using sorted values and linear interpolation between neighboring observations.Mean Absolute Deviation CalculatorCalculate the arithmetic mean and mean absolute deviation from the mean for a list of numeric observations.Coefficient of Variation CalculatorCalculate standard deviation relative to the absolute mean and express the coefficient of variation as a percentage.
Trending & Newly Added Calculators
Added or improved from the supplied Google Trends search data, with transparent formulas and editable assumptions where rates can change.
More calculators
Percent Error CalculatorAbsolute percent error, signed relative error and raw difference.Matrix CalculatorAdd, subtract, multiply, transpose, determinant and inverse.Pythagorean Theorem CalculatorSolve or verify right-triangle side lengths.Right Triangle CalculatorSolve sides, angles, area, perimeter and inradius.Volume CalculatorCalculate volume for cubes, rectangular prisms, cylinders, cones, spheres, hemispheres and triangular prisms with unit conversion to cubic metres, litres and cubic feet.Reverse Counting ToolPractice backward counting from 100 to 1, 50 to 1, 20 to 1 and custom ranges with sound, spoken numbers, questions and printable worksheets.Number Sequence CalculatorCalculate the nth term and sum of arithmetic or geometric sequences, preview the first terms, and compare the common difference or common ratio.Exponent CalculatorCalculate a base raised to any real exponent, including negative and fractional exponents where defined, with scientific notation and reciprocal interpretation.Quadratic Formula CalculatorSolve axยฒ + bx + c = 0 with the quadratic formula, including real or complex roots, discriminant, vertex, axis of symmetry and parabola direction.Slope CalculatorCalculate slope from two points and get the line equation, y-intercept, distance, midpoint and angle, including correct handling of vertical lines.Log CalculatorCalculate logarithms for any positive value and valid base, with natural log, common log, change-of-base verification and inverse exponential check.Statistics CalculatorCalculate descriptive statistics from a data set including count, sum, mean, median, mode, range, quartiles, IQR, population and sample variance and standard deviation.Root CalculatorCalculate square roots, cube roots and any integer nth root, including valid odd roots of negative numbers, with a power-back verification and reciprocal exponent form.LCM CalculatorCalculate the least common multiple of two or more integers with exact whole-number arithmetic, plus the GCF and normalized input list for verification.GCF CalculatorCalculate the greatest common factor (GCF/GCD) of two or more integers using exact Euclidean-algorithm arithmetic, with the reduced values after division by the GCF.Factor CalculatorFind all positive factors of an integer, factor pairs, number of divisors, sum of divisors and prime/composite status in one browser-based calculator.Rounding CalculatorRound numbers by decimal places, significant figures or the nearest custom multiple, with the rounding difference and percentage change shown for verification.Scientific Notation CalculatorConvert ordinary numbers to scientific notation, engineering notation and E notation with adjustable significant digits, coefficient, exponent and order-of-magnitude details.Big Number CalculatorAdd, subtract, multiply, divide, calculate remainders and raise very large integers to powers using exact BigInt arithmetic without ordinary floating-point precision loss.Prime Factorization CalculatorFind the prime factorization of a positive integer, including exponent form, distinct prime count, total prime factors and a multiplication check.Common Factor CalculatorFind every positive common factor shared by two or more integers, together with the greatest common factor, factor count and reduced input values.Long Division CalculatorDivide large integers with exact quotient and remainder, then generate a controlled decimal expansion with up to 50 places using the same repeated-remainder process as long division.Roman Numeral ConverterConvert whole numbers from 1 to 3,999 into canonical Roman numerals or validate and convert Roman numerals back to decimal integers.
Kids Calculator & Math Practice
Open the dedicated Kids section for a big-button calculator, addition, subtraction, multiplication, division, counting, times tables, fractions, money, time, number patterns and math games.
Find the right mathematics method
Use the percentage calculator for percentage-of, percentage change and adding or subtracting a percentage. Use the equation solver when the task is to find an unknown from an algebraic relationship. A statistics calculator answers a different question: it summarizes a list of observed values.
Set up the expression first
Brackets can change an answer because they determine which operations are grouped. For example, (8 + 4) รท 2 equals 6, while 8 + 4 รท 2 equals 10 under the usual order of operations. Write the intended grouping before comparing a calculator result with a handwritten calculation.
Measurements and data lists
For geometry, use dimensions in compatible units and check whether a label requests radius, diameter, height or slant height. For averages, decide whether each value has equal importance. The weighted average calculator is appropriate when credits, quantities or another explicit weight should affect the result.
Review the displayed method and keep enough digits for intermediate calculations. Rounding each intermediate number can produce a different final total from rounding only at the end. A quick estimate of the expected size and sign is useful for spotting an input error.