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Gym & Fitness Calculators
Strength, weights, running and training tools — quick numbers without the faff.
Barbell Weight Calculator
Work out which plates to load on each side of the bar.
Open tool →1-Rep Max Calculator
Estimate your one-repetition maximum from a working set.
Open tool →Plate Loading Calculator
Split a target barbell weight into plates per side.
Open tool →Treadmill Pace Calculator
Convert treadmill speed into pace per kilometre and mile.
Open tool →Running Pace Calculator
Calculate pace, speed and finish time from distance.
Open tool →Training Volume Calculator
Total up sets × reps × weight for a lifting session.
Open tool →