Wanjaaro — Free Calculators
170+ Personal Finance Calculators
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Wanjaaro — Free Calculators - 500+ free financial calculators. No signup, all local.

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Wanjaaro is a free suite of 70+ browser-based financial calculators for growth, retirement, mortgage, debt, tax, budgeting, investing. Every calculation runs locally, nothing touches a server. No signup, no ads blocking your math, just instant answers.

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Hey Product Hunt 👋 I built Wanjaaro because every time I needed a specific calculator — Coast FIRE, a debt avalanche comparison, a mortgage points break-even — I'd end up on a site plastered with ads, forced to sign up, or missing the exact scenario I needed. So I built 70+ calculators covering growth, retirement, mortgages, debt, insurance, tax, budgeting, and investing — all in one consistent, fast interface. Everything runs 100% in your browser. No server ever sees your numbers. A few things I'm proud of: Niche tools most sites skip (Kelly Criterion, Coast FIRE, CD Ladder, Backdoor Roth IRA) Every calculator has history, CSV/Excel export, and shareable links Fully responsive, dark mode, zero tracking of your inputs Would love your feedback — especially which calculator you use most, and what's missing. Building the next batch based on what this community asks for.