Precision financial calculators
Compound interest, mortgage, FIRE and more — modelled in real time, read like a private banker’s brief.
18 tools · free forever · no sign-up · instant results
Final balance · 10 years
$22,196
+$12,196 total earnings · 8.3% CAGR
Contributions
$10,000
Rate
8.0%
18
Calculators
$0
Forever free
Live
Real-time results
10k+
Calculations / day
Most used
See how your money grows over time with the power of compounding.
Calculate monthly payments, total interest, and full amortization schedule.
Model dollar-cost averaging returns over time for stocks, crypto, and more.
Calculate return on investment and annualized CAGR for any asset.
Live exchange rates for USD, EUR, CNY, JPY, GBP and more.
Find out when you can retire early using the 4% rule.
How much do you need to save each month to reach your goal?
Compare debt snowball vs avalanche to find your fastest path to debt freedom.
See the real purchasing power of money adjusted for inflation.
Track your assets and liabilities to calculate your true net worth.
Estimate your monthly car payment, total interest, and full payoff schedule.
Compare the true cost of renting vs buying a home and find your break-even year.
Find out how big your emergency fund should be and how long to build it.
Estimate your net paycheck after federal tax, FICA, and state tax.
Estimate cash flow, cash-on-cash return, cap rate, and NOI on any rental.
Find the capitalization rate and NOI of a rental to compare deals.
Model Buy, Rehab, Rent, Refinance, Repeat and your capital recovery.
Quickly screen a rental with the 1% rule, 2% rule, 50% rule, and GRM.
Accurate formulas
Every calculator uses industry-standard financial formulas, verified against leading financial institutions.
Privacy first
All calculations happen in your browser. We never store your financial data or require an account.
Built for clarity
Clean charts, plain-English insights, and real-time updates. No ads, no clutter, no confusion.