Calculators
100 tools
Free online calculators for finance and health — work out loan payments, mortgages, interest, retirement, BMI, calories, body fat, and more. Get instant results with clear breakdowns, charts, and worked examples.
Finance
Plan your money with free finance calculators — mortgages, auto and personal loans, interest, investments, retirement, taxes, and debt payoff. Each tool shows a full breakdown so you can see exactly where the numbers come from.
Browse collectionHealth
Understand your body with free health calculators — BMI, body fat, BMR and calorie needs, ideal weight, macros, and pregnancy dates. Results come with healthy ranges and plain-language guidance, not just numbers.
Browse collection