Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Accounting
Operating Margin Calculator
Calculate operating margin — operating income divided by revenue — to see how much of every sales dollar a company keeps after covering all operating costs but before interest and taxes. Use it as the cleanest measure of pure operational efficiency, independent of capital structure or tax jurisdiction.
Fill in the required fields to see your result.
Accounting
Return on Investment Calculator
Calculate return on investment (ROI) — the simple percentage gain or loss from an investment relative to its initial cost. Use it as the most universal profitability measure for marketing campaigns, real estate, stock trades, and business projects.
Fill in the required fields to see your result.
Key differences
| Operating Margin Calculator | Return on Investment Calculator | |
|---|---|---|
| Category | Accounting | Accounting |
| Inputs required | 2 | 2 |
| Result | Operating Margin (%) | Return on Investment (%) |
| What it does | Calculate operating margin — operating income divided by revenue — to see how much of every sales dollar a company keeps after covering all operating costs but before interest and taxes. Use it as the cleanest measure of pure operational efficiency, independent of capital structure or tax jurisdiction. | Calculate return on investment (ROI) — the simple percentage gain or loss from an investment relative to its initial cost. Use it as the most universal profitability measure for marketing campaigns, real estate, stock trades, and business projects. |