Tools
The numbers, worked out.
Free calculators for the questions training keeps asking. Each one shows its method and its sources, and each is something px works out for you every morning.
Calculators
Fuel
Calorie and macro calculator
Daily calories, protein, carbs and fat, from your body, training and goal.
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Should I train today?
Train, trim, switch or recover: one answer from sleep, HRV and resting heart rate.
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Zone 2 heart rate calculator
Your easy aerobic range, from your age, resting and maximum heart rate.
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Carbs per hour calculator
Grams of carbohydrate per hour, from session length and intensity.
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Daily protein calculator
Grams of protein a day, from your body weight and goal, and how to spread them.
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Sweat rate calculator
Litres of sweat an hour, from your weight before and after a session.
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HYROX pace calculator
The run pace per kilometre your HYROX target time needs.
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