Fitness Calculators
Free fitness calculators for calorie needs, macro splits, protein intake, running pace, heart rate zones, and one-rep max estimation. Optimize every workout.
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Frequently Asked Questions
What fitness calculators are available?▾
NexTool provides free fitness calculators including daily calorie (TDEE) calculators, macro nutrient splitters, protein intake estimators, running pace calculators, target heart rate zone finders, and one-rep max estimators.
How do I figure out my macro split?▾
Enter your daily calorie target and preferred diet approach (balanced, low-carb, high-protein, keto) into our macro calculator. It breaks your calories into precise grams of protein, carbs, and fat.
Can I calculate my running pace for races?▾
Yes. Our running pace calculator lets you enter your target race distance and time to get your required pace per mile or kilometer. It also works in reverse -- enter a pace to see projected finish times for common race distances.
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