How many calories bike kilometer?

Answer 1

Depends on a lot of things, your gender, age, size, fitness, and how hard you push. I get something like 35-40 cals/km, but I'm quite fit and I push hard. Around 20 is probably more likely.

Answer 2

Depends on how hard the ride is, your age, gender, size, fitness and more.

But generally, 6 km will take about 20 minutes. so maybe 100-130 calories at a comfortable pace.