All NexaCalc calculators

Calculate body mass index from weight and height.

Estimate basal metabolic rate from body details.

Estimate monthly mortgage payments and basic loan costs.

Plan installment payments, interest, and payoff schedules.

Estimate daily calorie needs from basic personal inputs.

Estimate total daily energy expenditure from activity level.

Compare common ideal weight estimates by height.

Estimate body fat percentage from body measurements.

Estimate daily hydration needs with transparent assumptions.

Find percentages, increases, decreases, and related values.

Work with fraction addition, subtraction, multiplication, and division.

Convert between common metric and imperial length units.

Convert Celsius, Fahrenheit, and Kelvin values.

Count days, weeks, months, and years between dates.

Calculate elapsed time between hours and minutes.

Estimate concrete volume for slabs, posts, and simple pours.

Estimate paint coverage from room dimensions and coats.

Format and validate JSON for easier reading and debugging.

Encode and decode Base64 text for development tasks.