Free calculators, formulas and templates
Compound interest tools that are simple, fast and useful.
Calculate future values, compare simple and compound interest, copy Excel formulas and download useful tables without needing an account.
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Future value estimate
£
%
Estimated final balance
£16,470.09
Interest earned
£6,470.09
Yearly table
Excel formula
CSV download
Popular tools
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Understand the numbers behind compound growth.
Use the calculators for quick answers, then read the formula, Excel guide, examples and tables to understand how the result is produced.
Home page FAQ
Quick answers
Yes. The calculators and guides are free to use.
No. The calculators run without sign-up.
Yes. The main calculator can export CSV and Excel-style files and copy an Excel formula.
No. They are educational tools and estimates only.
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