Commercial real estate
Commercial Expense Gross-up Calculator
Gross up variable operating expenses to a target occupancy level. Replace every default with figures that apply to your property and location.
Calculate your result
What this calculator estimates
Gross up variable operating expenses to a target occupancy level. It combines the inputs below to produce Grossed-up operating expenses. Every assumption remains editable so the estimate can reflect the property, financing and location being evaluated.
Worked example
Using the displayed sample assumptions, the calculator produces $421,429. This is an illustration, not a market quote. Change one input at a time to understand what drives the result.
Inputs and assumptions
- Actual variable expenses — sample input: 200000 currency units
- Actual occupancy — sample input: 70 %
- Gross-up occupancy — sample input: 95 %
- Fixed operating expenses — sample input: 150000 currency units
How to interpret the result
Use lease definitions and verified operating statements. Compare a conservative case with an expected case and keep a record of the assumptions used.
Common mistake to avoid
Do not compare properties using inconsistent NOI definitions. Local definitions, taxes, lending practices and measurement requirements can materially change the result.
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Reviewed 2026-09-08.