Calories burnt on 7km run?

[Curlywurlybars]

Just done a 7km run (in 38mins if needed) and Strava claims i burnt 600 cals 🤨.

Clearly don’t believe it- far too high! More knowledgable mumsnetters, how many calories did I actually burn?

Just trying to make sure I don’t have eat them all back in biscuits now 😬.

for some reason I have 300cal per 5k in my mind.
600 is very optimistic indeed.

are you sure about kilometer vs miles?

My Fitbit always reckons I burn about 400 for 5k so sounds about right

Depends on your height and weight really, I’m 5’2 and a healthy weight, ran 8k this morning in 45 mins and burnt just over 400

I’ve read it’s 100cal per mile, so just over 400 for 7km

It’s roughly 100 calories per mile for me but depends on your height and weight mainly.

Ahhh that is very helpful thank you all- I thought 600 cals was high! I’m 5ft5 and 118lbs but I don’t know if that increases or decreases the rough 100 cals per mile...?

@Ronnie27 and @LemonSquash94 - I should have tagged you in above post

It's all nonsense anyway isn't it because doesn't it depend on how easily you can run 7km in 38mins? Surely if that's 'fast' for your normal speed that would burn more calories for you than someone doing that as their easy pace.

And, shouldn't how hilly it is make a difference? 7km uphill shouldn't be the same as 7km flat.

How old are you & what was your avg heart rate on that run?

Don’t know if this helps but I’m late 20s, it was a very flat route and it was quite a steady pace for me- felt like I had worked out but wasn’t hanging if you know what I mean? Afraid no idea on heart rate!

@arethereanyleftatall

This calculator says 400 kcal burnt for 38 minutes run, if heart rate averaged 155 bpm & you're 29 yo female. Does Strava know your true weight, sex & age?

1 calorie per kilogram per kilometre. Approx. So if you weigh 60kg, a 7k run will be 420 cal.