Rowing Calorie Calculator

Find out your actual calorie burn on the Concept2 erg. The PM5 monitor assumes a 175 lb person. This calculator adjusts for your real body weight.

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Why the PM5 calories may be wrong for you

The Concept2 PM5 calculates calories using a formula calibrated for a 175 lb (79.4 kg) person. If you weigh more, you're actually burning more calories than shown. If you weigh less, you're burning fewer.

PM5 formula: Cal/hr = (Watts × 4) + 300
Weight-adjusted: Cal/hr = (Watts × 4) + (Weight in lbs × 1.714)

The 300 in the PM5 formula represents the estimated resting metabolic rate for a 175 lb person (175 × 1.714 ≈ 300). The weight-adjusted formula simply replaces this with your actual metabolic contribution.

Convert your split to watts with our pace calculator.

Track real calories in every workout

ErgManiac automatically calculates weight-adjusted calorie burn for all your workouts.

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