Health & Fitness Calculators

Estimate how many calories you need per day based on age, sex, weight, height, and activity level.

Check your Body Mass Index and see which weight category you fall into for your height.

Find your Basal Metabolic Rate – how many calories your body burns at rest each day.

Compare different formulas to see a healthy weight range for your height and body frame.

Estimate your body fat percentage using common measurement methods and body dimensions.

Find your target heart rate zones for fat burning, endurance, and high-intensity training sessions.

Calculate your waist-to-hip ratio and compare it with the cut-offs listed in a WHO report.

Estimate your daily calories and compare all five activity levels.

See how your BMI compares with the upper limit of the healthy range.

Turn daily calories into protein, carbs and fat.

Find a bedtime or wake-up time using sleep cycles.

Find your running pace, finish time or distance.

Estimate your one rep max from a lighter set.

Estimate your daily protein from weight and activity.

Find the calories you need to reach a goal weight.

Estimate calories burned in 26 activities.

Find how much water to drink each day.

Estimate your lean body mass.

Estimate your baby's due date.

Find your ovulation day and fertile window.

Convert A1C to average blood sugar.

Calculate body surface area (BSA).

Predict your next periods.

Estimate when you conceived.

Find healthy pregnancy weight gain.

Check the Army WHtR standard.

Estimate your VO2 max.

Estimate kidney function (eGFR).

Estimate blood alcohol content.

Convert steps to miles.