# Weight Loss rollerblading at 21 km|h

### Weight Loss and Calorie Burn Calculator

Here you can find how much weight can you lose rollerblading at 21 km|h, as well as learn how to calculate the calories spent and the equivalent weight loss.

## How to calculate the burned calories or weight (mass) loss

The number of calories you burn depends on:

- the physical activity
- the person's body weight
- the time spent doing the activity

Multiply your body weight in kg by the MET (Metabolic equivalent) value by the time of activity, you'll get the approximate energy expent in Kcal according to the person's body weight. In this case, rollerblading at 21 km|h at a MET value, burns Kcal/kg x body weight/h.

A 70 kg individual rollerblading at 21 km|h for 30 minutes will burn the following:

(METs x 70 kg body weight) x (30 min/60 min) = 430.5 Kcal.

is the value in METs for rollerblading at 21 km|h.

To transform the value in calories into pounds just divide the value in calories by 3500. So,

430.5/3500 = 0.12 pound = 1.97 ounces = 55.8 grams of mass. We can't say that it is fat because it could be also muscle.