Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Accounting
Payback Period Calculator
Calculate how many years it takes to recover the initial cost of an investment from its annual cash flow — the simplest break-even measure for capital projects. Use it as a quick filter for business investments like equipment purchases, solar installations, or marketing campaigns before running deeper NPV or IRR analysis.
Fill in the required fields to see your result.
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.
Fill in the required fields to see your result.
Key differences
| Payback Period Calculator | Return on Investment (ROI) Calculator | |
|---|---|---|
| Category | Accounting | Accounting |
| Inputs required | 2 | 4 |
| Result | Payback Period (years) | Annualized ROI (%) |
| What it does | Calculate how many years it takes to recover the initial cost of an investment from its annual cash flow — the simplest break-even measure for capital projects. Use it as a quick filter for business investments like equipment purchases, solar installations, or marketing campaigns before running deeper NPV or IRR analysis. | 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. |