# Fitness and Exercise Calculators

Pace Calculator

This pace calculator determines your pace for any race type activity. You can also calculate your splits, total time given distance and pace, or distance given total time and pace.

Activity Based Calorie Burn Calculator

This calculator provides an estimation of calorie burn for over 600 different activities.

Heart Rate Based Calorie Burn Calculator

This calculator provides an estimation of calorie burn during exercise based on your heart rate.

Walking Calorie Burn Calculator

This calculator estimates the amount of calories burned from walking any distance. The grade (i.e. incline or decline) of the walking surface is taken into consideration.

Running Calorie Burn Calculator

This calculator estimates the amount of calories burned from running any distance. The grade (i.e. incline or decline) of the running surface is taken into consideration.

Net Versus Gross Calorie Burn Conversion Calculator

These calculators convert gross calorie burn to net calorie burn, and net calorie burn to gross calorie burn.

Daily Caloric Expenditure Calculator

Use this calculator to estimate the total amount of calories that you burn during an average day.

Basal Metabolic Rate (BMR) Calculator

Use this calculator to estimate your basal metabolic rate (BMR). This is the amount of calories that you burn while you are at complete rest and not digesting any food.

Resting Metabolic Rate (RMR) Calculator

Use this calculator to estimate your resting metabolic rate (RMR). This is the amount of calories that you burn while you are at complete rest but still digesting food.

Body Mass Index (BMI) Calculator

Use this calculator to find out what your body mass index is.

Body Adiposity Index (BAI) Calculator

Use this calculator to find out what your body adiposity index (i.e. body fat percentage) is.

Maximum Heart Rate Calculator

Use this calculator to estimate your maximum heart rate.

Heart Rate Reserve Calculator

Use this calculator to estimate your heart rate reserve.

Target Heart Rate Calculator

Use this calculator to estimate your target heart rate training zones.

1RM Calculator

Use this calculator to estimate your one repetition maximum (i.e. the maximum amount of weight that you could lift just once) for any given resistance exercise.

Heart Rate and Percent VO2max Conversion Calculator

Use this calculator to convert your exercise intensity level from a heart rate to a percentage of maximal oxygen consumption (VO2max), and vice versa.

VO2max Calculator

This page actually has four separate VO2max calculators that are able to estimate your VO2max based on your resting heart rate or performance of a variety of physical exertion tests.

Fat Versus Carbohydrate Utilization During Exercise Calculator

This calculator allows you to estimate, based on your exercise heart rate, the percentage of the total calories you burn during exercise that are derived from fat versus carbohydrates.