All Calculators
Free online calculators for finance, health, math, everyday life and more. Fast, precise and mobile-friendly.
Finance
Interest, loans and financial planning
Break-Even Calculator
Calculate how many units you need to sell to break even
Loan Calculator
Calculate monthly payment, total cost and interest for your loan
Inflation Calculator
Calculate purchasing power loss due to inflation
Interest Calculator
Calculate simple, compound or continuous interest
Health
BMI, calories and health metrics
BMI Calculator
Calculate your Body Mass Index and find your weight category
Body Fat Calculator
Estimate your body fat percentage (US Navy method)
Calorie Calculator
Calculate your daily calorie needs based on age, weight, height and activity level
Heart Rate Zones
Calculate your optimal heart rate training zones
Math
Percentages, ratios and calculations
Daily
Tips, age and unit conversion
Age Calculator
Calculate your exact age in years, months and days
Electricity Cost Calculator
Calculate electricity costs and CO₂ emissions of devices
Fuel Cost Calculator
Calculate fuel costs for your journey
Running Pace Calculator
Calculate pace, time and distance for your training
Construction
Areas and construction calculations
Area Calculator
Calculate areas of rectangles, circles, triangles and other shapes
Concrete Calculator
Calculate concrete volume, weight and material requirements
Paint Calculator
Calculate paint needed for rooms and facades
Volume Calculator
Calculate volume of cuboid, cylinder, sphere and cone