Calorie reduction by walking inaccurate?

Adam__20000

Hi all!

I’m an 18 year old male that currently weighs 83kg. I’ve just gotten home from a 7.5 mile walk without taking any breaks, walking at a fairly fast pace throughout. To my shock, the calories that the app is claiming i’ve burned from this is barely 300! I searched around online and everywhere else is saying I should have burned much more. My weight settings on the app are up to date (2 weeks ago I weighed about 7kg more), could anyone give a possible explanation?

Thanks in advance!

CarvedTones

That's 40 per mile, but it may be discounting the first couple depending on what your fitness level is set to. It also reduces it by how many calories you would have burned doing nothing, which might be close to 200, because your base calorie amount includes those calories. The app is trying to compute extra calories you can consume. the ones you would have burned anyway are not extra.

Editme12

How long did the walk take you?

sijomial

Common net calorie formula for normal speed walking is body weight in pounds x distance in miles x 0.3 (efficiency ratio).

For your walk that would be 183 x 7.5 x 0.3 = 412 cals

When you are comparing burns for long duration but low rate of burn exercise the difference between net and gross calories becomes quite significant.

Adam__20000

Editme12 wrote: »

How long did the walk take you?

I’m not entirely sure but I think something along the lines of 2 hours

BrianSharpe

Editme12 wrote: »

How long did the walk take you?

Pace is immaterial unless you're race walking (ie walking at or above 5 mph)

OP to estimate the net (ie additional) calories expended walking multiply your weight in lbs x.30 x distance in miles. At your current weight of 83kg (approx 183 lbs) you would expend approximately 55 additional calories for every mile walked.

Editme12

I've noticed my fitbit gives me more calories when it's spread over a longer period of time. Like, if I walk 6,000 steps at work, over 5 hours, I get more calories than when I sit all day and do a 6,000 step walk in the evening. Just anecdotal.

cwolfman13

sijomial wrote: »

Common net calorie formula for normal speed walking is body weight in pounds x distance in miles x 0.3 (efficiency ratio).

For your walk that would be 183 x 7.5 x 0.3 = 412 cals

When you are comparing burns for long duration but low rate of burn exercise the difference between net and gross calories becomes quite significant.

BrianSharpe wrote: »

Editme12 wrote: »

How long did the walk take you?

Pace is immaterial unless you're race walking (ie walking at or above 5 mph)

OP to estimate the net (ie additional) calories expended walking multiply your weight in lbs x.30 x distance in miles. At your current weight of 83kg (approx 183 lbs) you would expend approximately 55 additional calories for every mile walked.

and...

CarvedTones

BrianSharpe wrote: »

Editme12 wrote: »

How long did the walk take you?

Pace is immaterial unless you're race walking (ie walking at or above 5 mph)

OP to estimate the net (ie additional) calories expended walking multiply your weight in lbs x.30 x distance in miles. At your current weight of 83kg (approx 183 lbs) you would expend approximately 55 additional calories for every mile walked.

Pace affects net calories. The less time it takes, the fewer calories deducted for just being alive. There is also a minor tweak due to efficiency; it will take more than 50% more energy to go 50% faster than your normal pace.

Anyway, this article:
https://www.verywellfit.com/walking-calories-burned-by-miles-3887154
explains it and includes charts for different speeds. They do note that weight matters more than pace, but pace matters a little.

DX2JX2

CarvedTones wrote: »

BrianSharpe wrote: »

Editme12 wrote: »

How long did the walk take you?

Pace is immaterial unless you're race walking (ie walking at or above 5 mph)

OP to estimate the net (ie additional) calories expended walking multiply your weight in lbs x.30 x distance in miles. At your current weight of 83kg (approx 183 lbs) you would expend approximately 55 additional calories for every mile walked.

Pace affects net calories. The less time it takes, the fewer calories deducted for just being alive. There is also a minor tweak due to efficiency; it will take more than 50% more energy to go 50% faster than your normal pace.

Anyway, this article:
https://www.verywellfit.com/walking-calories-burned-by-miles-3887154
explains it and includes charts for different speeds. They do note that weight matters more than pace, but pace matters a little.

Pace doesn't matter enough to think about. Walking at 4 mph and above is pretty tough. Most people could not sustain that for more than a couple of miles.