Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Accounting
Return on Investment (ROI) Calculator
Compute the annualized return on an investment from its initial cost, final value, and the time it was held — putting investments of different durations on a common, comparable scale. Use it to evaluate whether a stock, real estate deal, or business investment outperformed alternatives like an index fund.
Ecommerce
Profit Margin Calculator
Calculate the gross profit margin — the percentage of every sales dollar that remains after paying for the goods sold. Use it to set product prices, evaluate deals, and benchmark against industry margin targets.
Key differences
| Return on Investment (ROI) Calculator | Profit Margin Calculator | |
|---|---|---|
| Category | Accounting | Ecommerce |
| Inputs required | 4 | 2 |
| Result | Annualized ROI (%) | Profit Margin (%) |
| What it does | Compute the annualized return on an investment from its initial cost, final value, and the time it was held — putting investments of different durations on a common, comparable scale. Use it to evaluate whether a stock, real estate deal, or business investment outperformed alternatives like an index fund. | Calculate the gross profit margin — the percentage of every sales dollar that remains after paying for the goods sold. Use it to set product prices, evaluate deals, and benchmark against industry margin targets. |