Optimize workouts with pacing, heart rate, and strength tools.

Estimate 1RM and training zones safely.
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Calculate training zones from max or resting heart rate.
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Calculate target heart rate ranges for cardio training.
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Estimate max heart rate using age-based formulas.
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Estimate cardiovascular fitness using the Rockport test.
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Convert time and distance into pace and speed.
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Estimate workout calorie burn from activity and time.
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Estimate calories burned while walking.
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Estimate calories burned while running.
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Estimate calories burned while cycling.
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Estimate calories burned while swimming.
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Estimate calories burned from daily steps.
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