How Long Does It Take to Burn 500 Calories?

Calorie burn follows one equation: calories = MET × your weight in kilograms × hours × 1.05, where the MET value is the activity's intensity. To find time instead of calories, you rearrange it to solve for the hours — minutes = your calorie target ÷ (MET × weight in kg × 1.05 ÷ 60). That is all this tool does: it takes the target you type and the activity you pick, and reports the minutes. Because your weight is in the equation, the same 500 calories take a lighter person longer than a heavier one at the identical pace.

Why 500 is the number people pick

500 is a round, memorable figure — and it is roughly the daily energy gap behind a one-pound-a-week pace, since a pound of fat stores about 3,500 calories (500 × 7 days). That is why “burn 500 calories” is such a common search. To see what a given daily burn means for your weekly loss, use the Calorie Deficit Calculator — it works from your full picture rather than a single target.

Because the MET sits in the denominator, intensity has an outsized effect on time. Roughly doubling the MET — say stepping from a brisk walk (about 4.3 MET) up to a steady run (about 9.8 MET) — roughly halves the minutes to reach the same calorie target. That is why the comparison strip beneath your result is useful: it shows the same target across a walk, a run and a ride so you can pick the trade-off between effort and time that you will actually keep up.

A single long session to hit a big number is rarely the sustainable route — frequency tends to beat heroics. Spreading the same total across several shorter sessions in the week is easier to keep up and easier to recover from. Whatever the split, the burn only counts toward weight loss when it lands inside an overall deficit, so anchor it to your daily total: find that with the TDEE Calculator, then size the deficit. These are general estimates, not medical advice.