Real Estate Investing Metrics Every Buyer Should Know
Cut through property hype with the numbers that matter — NOI, cap rate, rental yield, cash-on-cash return and DSCR — plus the costs beginners forget, so you can judge a deal like an investor.
Net Operating Income Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Net operating income
₹5,00,000
- Operating expense ratio
- 37.5%
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Net Operating Income Calculator
The Net Operating Income Calculator works out your net operating income, along with 1 related figure in an instant. Enter gross operating income (annual) and operating expenses (annual) and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the gross operating income (annual).
- Enter the operating expenses (annual).
- Read off your net operating income, together with operating expense ratio — the calculator updates automatically, with no button to press.
Formula
The Net Operating Income Calculator uses the formula:
Net operating income = Gross operating income (annual) - Operating expenses (annual)
Worked example
For example, with gross operating income (annual) of ₹800,000 and operating expenses (annual) of ₹300,000, the net operating income is ₹5,00,000.
| Gross operating income (annual) | ₹800,000 |
|---|---|
| Operating expenses (annual) | ₹300,000 |
| Net operating income | ₹5,00,000 |
|---|---|
| Operating expense ratio | 37.5% |
Results are estimates for educational use, not professional advice.
Key terms explained
- Net operating income
- Rental income minus operating expenses, before mortgage and tax (NOI).
- Ratio
- A comparison of two quantities showing how many times one contains the other.
Frequently asked questions
NOI is a property's gross operating income minus operating expenses, before mortgage and tax. 8,00,000 income less 3,00,000 expenses gives an NOI of 5,00,000.
Maintenance, property tax, insurance, management and utilities. It excludes mortgage payments, depreciation and income tax.
It shows the income a property produces from operations and is the basis for the cap rate and property valuation.
It is operating expenses divided by gross income. A lower ratio means more of the income is kept as NOI.
The Net Operating Income Calculator uses the formula: Net operating income = Gross operating income (annual) - Operating expenses (annual). For example, with gross operating income (annual) of ₹800,000 and operating expenses (annual) of ₹300,000, the net operating income is ₹5,00,000.
Enter the gross operating income (annual). Enter the operating expenses (annual). Read off your net operating income, together with operating expense ratio — the calculator updates automatically, with no button to press.
Related guides
Net Operating Income Table: Net operating income by Gross operating income (annual)
Reference table of net operating income for Net Operating Income across a range of gross operating income (annual) values — exact, engine-computed figures you can read off at a glance.
How to Calculate Net Operating Income: Formula, Steps & Examples
Learn how to calculate Net Operating Income — the formula explained step by step, with worked examples and a free calculator to check your answer.