Quick guide
How to use this calculator
- Enter property amounts from one consistent currency and period.
- Use the labels to match the calculator's stated income, cost, area, or capacity convention.
- Read the assumptions beside the result before using it in an investment comparison.
Calculation method
Calculation method
Net effective rent = (stated rent × lease periods − concessions + mandatory tenant fees) ÷ lease periods.
Entered fixed decimals use exact rational arithmetic. Money rounds only for display; a supported nonzero amount is never replaced by a misleading zero.
Worked example
Worked example
Rent of 2,000 for 12 months with one 2,000 concession and 600 total mandatory fees has net effective rent of 1,883.33 per month.
Net effective rent = (stated rent × lease periods − concessions + mandatory tenant fees) ÷ lease periods.
Supported inputs
Precision and limits
Visible input limits
Amounts accept up to 30 digits and 12 decimal places and are capped at 1e12 per input. Rates are capped at 1000%; signed value-change rates cannot be below −100%.
International scope
No currency, tax regime, tenancy law, lender threshold, local market database, appraisal standard, or jurisdiction-specific fee is assumed.
Decision boundary
The result is an arithmetic scenario based on visitor-entered figures, not an appraisal, forecast, lending decision, legal determination, or investment recommendation.
Calculator-specific assumptions
This is a tenant-cost convention. Refundable deposits, optional services, utilities, timing differences, and the time value of money are excluded.