🌿 Health Calculators

BMI

Find your Body Mass Index and see which weight category you fall into.

Ideal Weight

See your ideal body weight from four medical formulas and the healthy BMI range.

Body Fat %

Estimate body fat percentage using the US Navy method. Shows fat and lean mass.

Weight Loss

Find daily calorie targets and how long to reach your goal weight — 3 plan options.

Waist-Hip Ratio

Calculate your waist-to-hip ratio and WHO cardiovascular risk category.

Pregnancy Weight Gain

See your expected weight gain by week of pregnancy based on IOM guidelines.

Calories / BMR

Find your daily calorie needs based on size, age, activity and goal.

Water Intake

Find your daily water target based on weight, activity and climate.

Macros

Get protein, carbs and fat targets for your daily calories and goal.

Protein Intake

Find your daily protein target based on body weight, activity level, and goal.

Fiber Intake

Find your recommended daily fiber intake and see how your current diet compares.

Heart Rate Zones

Find your 5 training zones for fat burning, cardio and peak performance.

Calories Burned

Estimate calories burned during 18+ exercises and daily activities.

Steps → Calories

Convert your step count to calories burned and distance.

1RM / One Rep Max

Estimate your one rep max from any weight and rep count. Get your full training weight table by percentage.

VO2 Max

Estimate your VO2 max (aerobic fitness) without a treadmill test, using a validated non-exercise formula.

Running Pace

Calculate the pace per km/mile needed to hit your goal race finish time, with a full splits table.

Plate Calculator

Figure out exactly which plates to load on the bar to hit your target weight.

Sleep Cycles

Find the best wake times based on 90-minute sleep cycles.

Age

Find your exact age in years, months and days. Days until next birthday.

Due Date

Calculate estimated due date from last period. See trimester and days remaining.

Blood Pressure

Check your blood pressure reading, see your classification, and log readings over time to track trends.

Ovulation Calculator

Estimate your ovulation day and fertile window from your last period and cycle length.