Free, transparent investment calculators for clearer financial decisions.
About Caspenda
Caspenda provides free investment and financial planning calculators for compound interest, dollar-cost averaging, retirement, FIRE, inflation, portfolio growth, ETF fees and more. Every tool shows its assumptions and formulas, runs in the browser, requires no account, and does not store calculation inputs.
PlatformsWeb
✓ VerifiedOct 25, 2026
Key features
- Transparent formulas and assumptions
- Calculations run locally in the browser
- No account required
- No calculation inputs stored
- Investment, retirement, FIRE, inflation and fee tools
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