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Real Estate Calculators

Operating Expense Ratio Calculator

Verified formula Updated Jun 2026 Private — runs on your device

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Verified formula Private

Operating expense ratio

40.00%

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Operating Expense Ratio Calculator

The Operating Expense Ratio Calculator works out your operating expense ratio in an instant. Enter operating expenses and effective gross income 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.

  1. Enter the operating expenses.
  2. Enter the effective gross income.
  3. Read off your operating expense ratio — the calculator updates automatically, with no button to press.

Formula

The Operating Expense Ratio Calculator uses the formula:

Operating expense ratio = Operating expenses ÷ Effective gross income × 100

Worked example

For example, with operating expenses of 40,000 and effective gross income of 100,000, the operating expense ratio is 40.00%.

Inputs used
Operating expenses 40,000
Effective gross income 100,000
Results
Operating expense ratio 40.00%

Results are estimates for educational use, not professional advice.

Key terms explained

Ratio
A comparison of two quantities showing how many times one contains the other.

Frequently asked questions

It is operating expenses divided by effective gross income, shown as a percentage. 40,000 on 100,000 income is 40%.

A lower ratio means more income is left after running costs, which is generally better for the owner.

Management, maintenance, insurance, property tax and utilities, but usually not mortgage payments or depreciation.

Many residential properties fall around 35–45%, but it varies with property type, age and location.

The Operating Expense Ratio Calculator uses the formula: Operating expense ratio = Operating expenses ÷ Effective gross income × 100. For example, with operating expenses of 40,000 and effective gross income of 100,000, the operating expense ratio is 40.00%.

Enter the operating expenses. Enter the effective gross income. Read off your operating expense ratio — the calculator updates automatically, with no button to press.

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