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126 tools
Free calculator to estimate the number of calories burned during routine daily activities or a workout based on activity duration.
This free calculator estimates a person's one rep max (1RM) based on the number of repetitions they can perform with a given weight.
This free calculator calculates the target heart rate range for maximizing exercise benefit based on age and resting heart rate.
This free body fat calculator estimates body fat percentage based on the U.S. Navy Method and the BMI method. It gives the loss needed to reach ideal body fat.
This free ideal weight calculator estimates ideal healthy bodyweight based on age, gender, and height based on several popular formulas.
This macro calculator estimates the macronutrient needs of a person based on their age, physical characteristics, activity level, and bodyweight goals.
Calculate your cycling training zones based on FTP using Coggan, Polarized, Sweet Spot, or British Cycling models.
Calculate your stride length with our free online tool. Get accurate results instantly. No signup required.
Plan your new fitness regime using Omni's weight loss calculator.
Calculate your training heart rate zones using Max HR, Karvonen (HR Reserve), or Lactate Threshold methods. Optimize cardio training intensity.
Heart rate training keeps you in "the zone". Use the max heart rate calculator to know what your average heart rate should be during a training session.
This marathon pace calculator helps you figure out your running pace, speed, or total running time.
Use this pace calculator to plan your running pace per mile in order to determine how fast you need to run to finish your race within a certain time.
Our running pace calculator helps you to measure how fast you can run.
The steps to miles calculator estimates distance based on stride length and the number of steps walked.
Calculate your ideal bike frame size, saddle height, and fit measurements based on your body dimensions and riding style.
Calculate your cycling calories with our free online tool. Get accurate results instantly. No signup required.
Calculate your Functional Threshold Power (FTP) using various test protocols and determine your training power zones.
Calculate your jump rope calories with our free online tool. Get accurate results instantly. No signup required.
Calculate race time predictor with our free tool. Get precise results instantly.
Calculate your running calories with our free online tool. Get accurate results instantly. No signup required.
Calculate your stairs calories with our free online tool. Get accurate results instantly. No signup required.
Calculate calories burned during weightlifting and strength training based on workout type and intensity.
Calculate your swimming calories with our free online tool. Get accurate results instantly. No signup required.