- Max Heart Rate CalculatorMaximum heart rate (MHR) is the highest number of beats per minute your heart can achieve. It's used to define heart rate training zones and set workout intensity targets.
- Running Pace CalculatorCalculate your running pace, speed, and projected finish times. Enter your distance and total time to get your min/km, min/mile, km/h, and mph.
- Target Heart Rate CalculatorTarget heart rate zones tell you exactly how hard to push during a workout. This calculator uses the Karvonen method — which accounts for your resting heart rate — for more personalized zones.
- VO₂ Max CalculatorVO₂ max is the maximum rate at which your body can consume oxygen during exercise — the gold standard measure of aerobic fitness. This calculator estimates it from the Cooper 12-minute run test.