Is there a file size limit?

No practical limit for most operations.

Results are generated using standard algorithms for maximum accuracy.

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ROI Calculator — best

Calculate return on investment percentage.

Initial Investment ($)

Final Value ($)

Period (years, optional)

Type, paste, or upload your content.

Result appears instantly in your browser.

Copy the result or download your file.

Calculate compound interest growth over time. See how your investment grows with regular contributions.

Calculate gross and net profit margins.

Calculate break-even point for a business or product.