Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Excludes debt service, income tax, depreciation and capital spending. Enter operating expenses on a consistent property basis.
Example Calculation
- Potential annual rent: 100000
- Vacancy and credit loss: 5 %
- Other operating income: 2000
- Operating expenses: 30000
Potential annual rent = 100000; Vacancy and credit loss = 5 %; Other operating income = 2000; Operating expenses = 30000. The primary result is 67000.
Frequently asked questions
How do I use this calculator?
Enter potential annual rent, vacancy and credit loss, other operating income, operating expenses. The result updates automatically. Use Reset to restore the example values.
What method does it use?
NOI=potential rent(1−vacancy)+other income−operating expenses.. Excludes debt service, income tax, depreciation and capital spending. Enter operating expenses on a consistent property basis.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.