Office Space Calculator
Estimate office space from employee count, personal workspace, shared areas, support space, circulation and future growth allowance in ft² or m².
Calculator workspace
Enter your own values and review the method shown with the result.
Plan office area with transparent assumptions
Office space per employee is not one universal number. Layout style, private offices, meeting rooms, storage, reception, kitchens, accessibility, circulation and local building requirements all change the real requirement.
This calculator therefore starts with your own personal-workspace assumption and adds separate allowances for shared areas, support areas, circulation and future growth. It is useful for early leasing, fit-out and capacity comparisons, not as a substitute for architectural or code review.
How to use this calculator
- Enter the number of employees or workstations.
- Enter the personal workspace area you want to plan per employee.
- Add percentages for collaboration, support and circulation space.
- Add a future growth allowance if you expect headcount to rise.
- Review total area and final area per employee.
Frequently asked questions
How much office space should I use per employee?
There is no single number that fits every workplace. Enter the planning standard that matches your layout and local requirements.
Does this include meeting rooms?
Yes, if you include them in the meeting and collaboration percentage.
Can I use square meters?
Yes. Select m² and enter all area assumptions in square meters.
Build an office area estimate from separate allowances
Begin with the number of employees or workstations and the personal workspace assigned to each. Then enter meeting space, support areas and circulation as separate percentages. These categories describe different uses of the floor area: a meeting room is shared working space, storage is support space, and a route between desks is circulation.
A planning example
Ten workstations at 100 square feet each give 1,000 square feet of personal workspace. Allowances of 20% for collaboration, 10% for support and 20% for circulation add 500 square feet. A 10% growth allowance on that subtotal produces 1,650 square feet in the modeled scenario. These figures illustrate the arithmetic; they are not an occupancy standard.
Compare like-for-like measurements
A landlord's advertised area can use a different basis from the usable floor area in a furniture plan. Check which areas a quote includes before comparing it with the result. Keep the calculator's area unit consistent across the workspace assumption and the output.
For a hybrid office, test the expected simultaneous workstation demand separately from total staff headcount. Meeting demand and shared amenities may not fall by the same percentage. Review the assumptions against the actual floor plan before selecting a lease or fit-out quantity. Use the room area guide for measuring an individual rectangular space.