How do I calculate operating expense ratio? Typical range for rentals is 35–50% of effective gross income. Enter your numbers above and the result updates instantly. For example: Annual operating expenses: $34,000 · Effective gross income: $93,500 → Operating expense ratio: 36.36%.
Is this Operating Expense Ratio Calculator free? Yes — completely free with no sign-up or paywall. It runs entirely in your browser and keeps working offline; the numbers you enter never leave your device.
How accurate is it? It uses the standard published formula for operating expense ratio. Results are estimates for planning — not financial, tax, medical, engineering, or legal advice.