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Training 4 min read

Why your watch overstates calories burned

Few numbers feel as good as a big calorie burn after a workout, and few are as misleading. Wearables tend to overestimate energy burned, sometimes substantially, and eating back those phantom calories is one of the quietest reasons weight loss stalls.

Why estimates run high

Wrist devices infer calorie burn from heart rate and movement, which is an indirect proxy. Factors they can't see well, your true fitness, efficiency, and body composition, all skew the result, and the error usually runs in the optimistic direction.

Overestimates of 20 to 40 percent are common for typical workouts. On a hard session that's hundreds of calories that didn't actually leave your body.

Why it matters for weight

If you eat back an inflated burn, you can erase the deficit your workout was supposed to create, sometimes ending the day in a surplus while feeling virtuous. This is why people who train hard sometimes struggle to lose weight: the math is quietly off.

The fix is not to distrust exercise, it's to stop treating the burn number as a license to eat. Movement is for health and capacity; the deficit is mostly won at the table.

A more honest approach

Treat wearable calories as a rough, optimistic estimate, and don't reflexively eat them all back. Anchor your intake to your goal, not to a number your watch invented mid-run.

Our calories-burned calculator uses transparent MET-based math so you can see a conservative estimate, and Equil keeps your intake and output in one honest picture instead of two flattering ones.

Stop tracking by hand

Equil reads your food, glucose, sleep and training, then adjusts your plan in real time. Not another logger, a coach.

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