Finance
ROI Calculator: $10,000 → $15,000 = 50% (14.47% CAGR)
Calculate total ROI, annualized ROI (CAGR), and net profit. Example: invest $10,000, end at $15,000 in 3 years → 50% ROI and 14.47% annualized.
Calculators
Pay, tax, and settlement. Pick a country or search.
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Calculators by country
Pick your country to quickly find salary, tax, benefits, credit, travel, and utility calculators.
General
Finance
Safe Withdrawal: $1,000,000 at 4% → $40,000/year
Turn a portfolio into an annual and monthly withdrawal at a chosen SWR. Educational 4% / Trinity framing — not a guarantee the money lasts.
Finance
Life Insurance Needs Calculator
Calculate how much life insurance you need to protect your family using the DIME method: Debt, Income, Mortgage, and Education.
Finance
EAR Calculator: 12% nominal monthly = 12.68% effective
Convert nominal APR to EAR/APY by compounding frequency. Defaults: 12% monthly → EAR 12.6825%, period rate 1%
Finance
Years to FI: 50% savings rate from $80k income
Estimate years to financial independence from income, expenses or savings rate, current portfolio, and a real return. Default lock: $80k / $40k → 50% savings rate.
Utilities
Area Calculator
Calculate the area of geometric shapes: rectangle, circle, triangle, and trapezoid. Convert between m², ft², and varas².
Utilities
Age Calculator
Calculate your exact age in years, months, and days, with additional info like zodiac sign and generation
Utilities
Date Calculator
Calculate the difference between two dates or add/subtract days, months, and years.
Utilities
Paint calculator: liters and cans
Estimate paint to buy for walls or ceilings. Subtract doors and windows, use your product's coverage and calculate whole cans, leftover paint and cost.