CalcFi

CalcFi

Free financial calculators that do the math for you.

CalcFi is a free collection of 312+ financial calculators covering mortgages, investing, taxes, retirement, crypto, debt, insurance, and business. Every calculator runs instantly in your browser — no signup, no ads, no paywalls. Built for people who want fast, accurate answers to real money questions.

Business & Finance · Productivity · Investing

Features

312+ calculators across 10 financial categories
No signup or account required
No ads, no paywalls — completely free
Instant results with detailed breakdowns
Available in English and Spanish
Embeddable calculators for other websites
Mobile-friendly responsive design
State-specific tax and salary data for all 50 US states

Use Cases

Calculate monthly mortgage payments before house hunting
Compare Roth vs Traditional IRA for retirement planning
Figure out how long to pay off credit card debt
Estimate take-home pay after taxes in any US state
Plan a FIRE retirement number
Compare cost of living between cities
Calculate crypto tax liability
Run break-even analysis for a new business

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Comments

Jere S

Hey! 👋 I built CalcFi because I was tired of financial calculator sites loaded with ads, paywalls, and signup walls. CalcFi has 312+ free calculators covering everything from mortgages to crypto taxes — all instant, no account needed. Would love your feedback on which calculators you find most useful!

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