Fitness4
Calories Burned Calculator - Estimate Calories Burned by Activity
Estimate calories burned during walking, running, cycling, swimming, and other activities based on your weight and workout duration, then compare options.
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Wilks Score Calculator
Calculate your powerlifting Wilks score to compare raw strength across different bodyweights and see which strength tier your total falls into.
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Target Heart Rate Zone Calculator
Find your maximum heart rate and personalized training zones (fat burn, cardio, peak) using the Karvonen method.
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Running Pace Split Calculator
Calculate postive and negative split times for running a Marathon, Half Marathon, 10K, 5K or any distance.
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