Office Space Planning Calculator

Calculate required office space by employee count, workplace type, and growth projections.

Number of Employees

SF per Employee

Desk Utilization

Common Area Factor

Annual Growth Rate

Planning Horizon

years

Tab to move between fields

Total Area Needed

7,200 SF

Desks Needed

Usable Area6,000 SF

Effective SF per Person144 SF

Desk Sharing Ratio1.25

Future Headcount67

Future Area Needed9,720 SF

How to Use This Calculator

Enter Number of Employees and SF per Employee (150 SF typical, 250 SF for private offices).
Set Desk Utilization Rate % — 80% for hybrid environments, 100% for all-in-office.
Enter Common Area Factor % (15–25% for lobbies, restrooms, hallways).
Set Annual Growth Rate % and Planning Horizon in years to size for future headcount.
Review Total Area Needed and Desks Needed for lease negotiations.
Check Desk Sharing Ratio — a ratio below 1.0 enables hot-desking and reduces space requirements.

How the result changes with Number of Employees

Number of Employees: Current total headcount.
SF per Employee: Usable square feet per workstation (150 typical, 250 private offices).
Desk Utilization: Percentage of employees in office on peak day (100% = no hot-desking).
Common Area Factor: Additional space for lobbies, restrooms, hallways (typically 15-25%).
Annual Growth Rate: Expected annual headcount growth rate.
Planning Horizon: Number of years to plan for future growth.

Identify Input Parameters
4 parameters
Number of Employees = 50, SF per Employee = 150, Desk Utilization = 80, Common Area Factor = 20 = 6 input(s) provided
Calculate Total Area Needed
Total Area Needed
7200 = 7200
Calculate Desks Needed
Desks Needed
40 = 40
Calculate Usable Area
Usable Area
6000 = 6000
Calculate Effective SF per Person
Effective SF per Person
144 = 144