Calculators
Powerful online calculators for math, finance, health, and more.
Percentage Calculator
Calculate percentages instantly: find X% of Y, what percent X is of Y, or the percentage change between two numbers online.
Compound Interest Calculator
Calculate compound interest on savings and investments. See how your money grows with different rates, compounding frequencies, and time periods.
BMI Calculator
Calculate your Body Mass Index (BMI) with metric or imperial units. Get your BMI value and weight category: Underweight, Normal, Overweight, or Obese.
Tip Calculator
Calculate tip amounts and split bills between friends. Choose from preset tip percentages or enter a custom rate, then divide evenly.
VAT Calculator
Add or remove VAT from any amount. Includes Dutch VAT presets (21%, 9%, 6%) and a custom rate option. Instantly see net, VAT, and gross values.