Fitness & Sports Calculators

Running pace, speed, race time, heart rate zones, 1RM & macros

Popular calculators

Macronutrient Split Calculator

Calculate daily Protein, Carbs, and Fat breakdown for your fitness goal.

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Running Pace Calculator

Calculate running pace per mile or kilometer and average speed.

Calculate now

All Fitness & Sports Calculators (6)

Macronutrient Split Calculator

Calculate daily Protein, Carbs, and Fat breakdown for your fitness goal.

Running Pace Calculator

Calculate running pace per mile or kilometer and average speed.

Race Time Predictor

Predict finish times for 5k, 10k, Half Marathon, and Marathon using Riegel formula.

Running Speed Calculator

Calculate running and cycling speed in km/h and mph.

Heart Rate Zone Calculator

Calculate target heart rate training zones (1–5) based on age and resting HR.

One Rep Max (1RM) Calculator

Estimate maximum weight for 1 repetition using Brzycki & Epley formulas.