Financial Tools
Free, powerful financial tools for personal finance, retirement planning, real estate, taxes, and more. All calculations run locally in your browser - your data never leaves your device.
Coast FIRE Calculator
Calculate your Coast FIRE number and see when you can stop saving for retirement while your investments grow to your target.
Social Security Calculator
Estimate your Social Security benefits based on your earnings history and retirement age.
Emergency Fund Calculator
Calculate how much you need in your emergency fund based on your expenses and risk factors.
Debt Payoff Calculator
Plan your debt payoff strategy with snowball or avalanche methods and see your debt-free date.
Rental Property ROI
Analyze rental property investments with cash flow, cap rate, and ROI calculations.
House Hacking Calculator
Analyze the financials of house hacking - living in one unit while renting others to offset your mortgage.
Fee Analyzer
Analyze investment fees and see how they impact your long-term returns.
Self-Employment Tax Calculator
Calculate your self-employment taxes, quarterly estimates, and see how much to set aside from your 1099 income.
SaaS LTV & CAC Calculator
Calculate customer lifetime value, CAC payback, and other key SaaS metrics to optimize your unit economics.
Impermanent Loss Calculator
Calculate potential impermanent loss when providing liquidity to AMM pools and compare to holding tokens.
Why Use Our Calculators?
100% Private
All calculations happen in your browser. Your financial data never leaves your device.
Fast & Free
No signup required. No ads. No premium tiers. Just powerful calculators for everyone.
Shareable
Save scenarios and share calculations with unique URLs. Export to PDF or CSV.