Life tools

Health & Lifestyle Calculators

Choose a calculator for body measurements, calories, hydration, sleep, pace, travel, and everyday lifestyle questions.

Estimate adult body mass index using height and weight.

Estimate daily calories from age, sex, height, weight, and activity.

Calculate fuel consumption from distance and fuel used.

Estimate daily and weekly calorie deficit.

Estimate daily water intake from body weight.

Estimate remaining days from pregnancy timing.

Estimate sleep duration from sleep cycles.

Calculate pace and speed from distance and time.

Estimate total daily energy expenditure from BMR and activity level.

Estimate basal metabolic rate using the Mifflin-St Jeor equation.

Estimate body fat percentage with the U.S. Navy circumference method.

Estimate ideal body weight using the Devine formula.

Split daily calories into protein, carbohydrate, and fat targets.

Estimate due date and pregnancy week from the last menstrual period date.

Estimate a pregnancy due date from last menstrual period or conception date.