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Calcimator

Space Programming Calculator

Net-to-gross area from programmatic requirements.

Inputs

Results

Gross area (GSF)

7,073

Grossing factor

1.22

Total net area (NSF)5,800
Usable area (USF)6,496
Loss area (sq ft)1,273
Efficiency (%)82
Est. corridors (sq ft)446
Est. restrooms (sq ft)191
Est. mechanical (sq ft)255
Est. occupants79
Gross SF/person89.5
Wall Thickness (sq ft)190.98
Elevator Lobby (sq ft)190.98
How to Use This Calculator
  1. Enter Private offices (NSF), Open office (NSF), and Conference rooms (NSF).
  2. Set Support spaces (NSF), Reception/lobby (NSF), and Building type (0-5).
  3. Review Gross area (GSF) and Grossing factor.
  4. Use Total net area (NSF) and Usable area (USF) to inform your decision.
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