12 Fitness Calculators

A collection of the 12 most popular (and widely used) fitness, weight loss and exercise calculators. Uses the latest, most scientifically accurate formulas from the U.S. Navy, U.S. Army, American Heart Association, American College of Sports Medicine and many others. Based on Weightmania Pro and Athletes Database, our best selling desktop fitness software for 11 years.

Each calculator includes detailed instructions and information on the back, visible in one tap. All calculators support both Metric and English.

Includes the following calculators:

1. Body mass index (BMI) - Calculates body mass index (a widely accepted measurement of weight status); automatically interprets result and tells how you rate.

2. Basal metabolic rate (BMR) - Calculates basal metabolic rate (the number of calories your body burns while at rest).

3. Body fat (percent) - Calculates percent body fat accurately and fast with no special tools (you only need a tape measure); automatically interprets the result and tells how you rate.

4. Calories burned - Calculates calories burned for hundreds of different activities, for any amount of time and body weight.

5. Calories required daily - Calculates the number of calories you need daily, based on your age, weight, gender and activity level.

6. Distance/time/pace/speed - Calculates distance, time, pace and speed after cardiovascular workouts; can also be used for planning and estimating workouts.

7. Math + Metric to English conversion - A 42 key calculator for basic and advanced calculations; performs a wide range of conversions between metric and English.

8. One-repetition maximum weight (1 rep max) - Calculates your one-repetition maximum weight ("one rep-max"), and 20 percentages of that weight, for any weight training exercise. This is widely used to measure overall strength and determine how much weight to use in many weight training programs.

9. Resting heart rate timer and calculator - Helps you calculate resting heart rate. Heart rate can be used to evaluate your health and fitness level. Includes a large, scientifically accurate 2 minute, 1-minute, 30-second and 15-second count-down timer. Makes it easy to regularly check heart rate at home.

10. Splits calculator (for running, walking, cycling and swimming) - Calculates splits for any distance or interval; ideal for race planning or anytime you want to maintain an even pace during training. For example, it calculates the time you need at each mile or kilometer, to finish a race in a specific time.

11. Target heart rate - Calculates the range (zone) your heart rate should be in during cardio. workouts for maximum safety and benefits.

12. Target weight calculator - Calculates the number of calories you need to consume or burn daily to reach a weight goal by a specific date. Helps you lose or gain weight. Enter the amount of weight you want to lose or gain, then select a target date. You can also have it suggest a safe target date based on the weight entered. For increased accuracy, calculations are based on BMR (Basal Metabolic Rate). This is calculated automatically using your age, gender, current weight and activity level.

The best fitness and diet tools, with the most accurate formulas available, instantly ready in one place. Monitor your health and fitness, improve your workouts, and judge the effectiveness of diets and exercise.