Calories on a stationary bike...?

Lilly Salton

New member
I have a stationary bike at home that I use for exercise sometimes. I'm confused about how many calories I've burnt though. On the bike it'll have time, speed, distance, calories, heart rate. If I've done about 13km in about 30mins it'll say I've lost about 300 calories. Except I've looked on the internet and for my weight (about 54kg) and speed (In my opinion I go about light-moderate speed, I sweat and am a little out of breath but I'm not like dying and need to stop or anything. Would that be considered light-moderate or what do you think?) it says I would have only burnt about 125 or something. So which is right? And why are the number of calories so far apart? Thanks!
 
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