# On average, how many calories per mile

• 10-24-09, 03:56 PM
bautieri
On average, how many calories per mile
Would you say you burn while riding your bicycle. Yes I know this varies with terrain and intensity. For road riding at a slack pace of 15ish mph I usually figure 30 calories per mile.

I'm curious because this afternoon I jogged 3 miles and the treadmill indicated I burnt a whopping 385 calories. I feel fairly wiped out, much worse than after a 13 mile ride which would put me at the same amount of calories at 30 cal a mile. Either the treadmill is way off or I am being exceptionally generous with my 30 calories per mile. Any thoughts?
• 10-24-09, 04:00 PM
billyymc
I think the machines are not that accurate. At our gym at work, I can burn 500 calories in a hard 25 minutes Arctrainer session - according to the machine. On the incline elliptical, I feel like I'm putting in about the same effort, but get around 400. On the stationary bike, 450 or so in 25 minutes.

I don't think any of them are accurate -- I just use the measurements to sort of gauge how hard I worked out relative to other workouts on the same machines.
• 10-24-09, 07:00 PM
merlin55
sorry but calories per mile are a function of elevation gain and your speed squared. 10 mphs on the flats uses 1/4 the calories per mile as 20 mphs. search for cycling power calculators to get an accurate estimate
• 10-24-09, 08:30 PM
ScrubJ
• 10-24-09, 09:06 PM
youcoming
Too many variables, hills, wind, speed etc. I've had 3 hr rides that burnt 2000cal and 3 hour rides burn 4500cal.
• 10-25-09, 06:29 AM
flip18436572
It all depends upon the machines. In using my Garmin to compare calories burned with some of the machines, my Garmin is about 85% of the machines, and I think the Garmin still calculates on the high side. I would guess the machines are high and I usually give myself 75% percent of what they show.
• 10-25-09, 07:38 AM
professorbob
• 10-25-09, 10:06 AM
Fishy
Quote:

Originally Posted by bautieri
Would you say you burn while riding your bicycle. Yes I know this varies with terrain and intensity. For road riding at a slack pace of 15ish mph I usually figure 30 calories per mile.

I'm curious because this afternoon I jogged 3 miles and the treadmill indicated I burnt a whopping 385 calories. I feel fairly wiped out, much worse than after a 13 mile ride which would put me at the same amount of calories at 30 cal a mile. Either the treadmill is way off or I am being exceptionally generous with my 30 calories per mile. Any thoughts?

Running a mile burns about 115 calories - you're not that far off. If you were wearing a heart monitor, you likely would have noticed that your heart rate went up faster and stayed consistently higher than it would have on a 13 mile bike ride - especially if you're not used to running. You'll feel less thrashed the next time you run!
• 10-25-09, 01:57 PM
flip18436572
I just did a test on my Garmin in regards to riding. I did a 5 mile ride on my rollers with gears 1 - 5 with one mile on each gear and it said I burned 405 calories at a 16.8 mph average and a 89 cadence and an average heart rate of 104. Max heart rate was 124

I did the same thing again after doing some light stretching and some pushups and then stretching again to get my heart rate back down. Then I did another 5 mile ride with gears 2 - 4 for .5 miles each and then the remain miles in 5th gear. It said I burned 480 calories at a 18.1 mph average and an 88 cadence with an average heart rate of 110. Max heart rate was 142.

I can tell you from my old runs with the 305 a 2.16 mile run burned 405 calories at an average heart rate of 143 and a max of 151.
• 10-25-09, 02:06 PM
youcoming
While riding or running my avg HR is about the same. I can ride fast which requires spinning a hard gear like 53x15 around 90 cadance which usually has the HR abetween 160-170 but my avg is around 145. I can't jog fast tho, not enough training but my HR avg is usually the same. I can actually get my HR over 190 on the bike but while running rarely over 175 it just hurts too much. I'm sure I could get it better but I would rather not over train the legs.
• 10-25-09, 02:10 PM
flip18436572
Below is what I did quickly after reading a "Runner's World" article about calories burned when running a mile. So it is basically your weight times .75 for each mile.

LBS x calories burned

200 0.75 150
205 0.75 153.75
210 0.75 157.5
215 0.75 161.25
220 0.75 165
225 0.75 168.75
230 0.75 172.5
235 0.75 176.25
240 0.75 180
245 0.75 183.75
250 0.75 187.5
255 0.75 191.25
260 0.75 195
265 0.75 198.75
270 0.75 202.5
275 0.75 206.25
280 0.75 210
285 0.75 213.75
290 0.75 217.5
295 0.75 221.25
300 0.75 225
• 10-25-09, 02:27 PM
Neil_B
Quote:

Originally Posted by bautieri
Would you say you burn while riding your bicycle. Yes I know this varies with terrain and intensity. For road riding at a slack pace of 15ish mph I usually figure 30 calories per mile.

I'm curious because this afternoon I jogged 3 miles and the treadmill indicated I burnt a whopping 385 calories. I feel fairly wiped out, much worse than after a 13 mile ride which would put me at the same amount of calories at 30 cal a mile. Either the treadmill is way off or I am being exceptionally generous with my 30 calories per mile. Any thoughts?

I might be wrong, but isn't the rule of thumb about 300 calories per hour of cardio?
• 10-25-09, 05:51 PM
billyymc
Quote:

Originally Posted by The Historian
I might be wrong, but isn't the rule of thumb about 300 calories per hour of cardio?

Sounds low to me from tables I've seen, and from using the machines at the gym.

Now, I don't really believe what the machines say about the calories I burn in a workout, but they indicate a much higher burn rate than 300/hr.

There are typically 3 machines I use -- elliptical with arms included, Arctrainer (a different style of elliptical), and the bike.

I'll go anywhere from 20 - 25 minutes on a two or three machines in a given workout, to 45-50 on a single machine. If I were to believe the machines, I burn anywhere from 900-1200 calories an hour during th ose workouts. Again, I don't believe them -- but 300/hour sounds way low when I compare.

It's not going ot change my workout -- I only have so many minutes in a day to devote to exercise.
• 10-25-09, 06:17 PM
Fletch521
I rode 40.4 miles today. I use B.iCycle to log my trips with a combined rider/cycle weight of 350 pounds. For the day it shows 4584 calories burned. So today it was 113.5 calories per mile.

Since the last time I reset the values, B.iCycle shows 208 total miles and 24273 calories burned. That is 116.7 calories per mile. Todays 40 mile ride was on former rail rode trails with a maximum of 1 1/2% grades. Over the 40 miles I climbed a total of 584 feet. Most of the other 208 miles was on hillier trails so that would account for the higher per mile average.
• 10-25-09, 07:40 PM
billbunton
The treadmills are terribly inaccurate. As a rough estimate, 30 KCal/mile is about what I figure for riding (reality, according to the powertap, seems to be 27 to 35 or so). Obviously this varies by terrain.

For walking, I've found 60 KCal/mile to be pretty reasonable, based on my Garmin 310 (which also seems to agree reasonably well with the powertap when riding).

For running, I figure 100 KCal/mile, and find the Garmin usually comes out around 105.
• 10-25-09, 09:27 PM
Neil_B
Quote:

Originally Posted by billyymc
Sounds low to me from tables I've seen, and from using the machines at the gym.

Now, I don't really believe what the machines say about the calories I burn in a workout, but they indicate a much higher burn rate than 300/hr.

There are typically 3 machines I use -- elliptical with arms included, Arctrainer (a different style of elliptical), and the bike.

I'll go anywhere from 20 - 25 minutes on a two or three machines in a given workout, to 45-50 on a single machine. If I were to believe the machines, I burn anywhere from 900-1200 calories an hour during th ose workouts. Again, I don't believe them -- but 300/hour sounds way low when I compare.

It's not going ot change my workout -- I only have so many minutes in a day to devote to exercise.

I've understood exercise machines, both in gyms and for home use, to be inaccurate and extremely optimistic. After all, they want people to get a sense of accomplishment using them.... like an amplifier going up to 11.
• 10-25-09, 11:21 PM
cyclist2000
google "cycling calorie calculator", there a lot of hits. The calories burned are dependent on your weight , age and speed. This is simplistic since it doesn't take into account the terrain and wind and ambient temps. I put in my typical ride and it was 75 calories burned per mile. This number will fluctuate based on speed.
• 10-28-09, 12:26 PM
gamecock
I use a Polar 55 heart rate monitor, physican's advice, and after entering a lot of personal data (age, sex, weight, etc.) it purportedly calculates calories expended, and pretty accurately according to my doc and dietician. Anyhow, 42 miles, hilly East Tennessee terrain, keeping my heart rate between 115 and 140 beats per minute, in just under 4 hours, burned 2654 calories according to the Polar--or, 663.5 calories per hour (similar to the gym bike), or, 63 calories per mile.
• 10-28-09, 03:44 PM
Missbumble
Riding I was gonna say 40 calories a mile...so 2 hour bike ride at 15 mph = 1200 calories.
Now two hours of running at say 12 min mile= oh dear 10 miles running. I bet I would burn just a friggin ton! A half hour run is pure torture....so I figure you have to ride twice as far biking as running. No science to it = just my thoughts....but all in all I think once you have been biking for a while as a fat woman (See not every one can do that) then try running it is a very very humbling experience.

OK You convinced me...I think Iwill go for a run now...(Only cause i do not have a bike here at my virtual lcoation)
• 10-29-09, 08:29 AM
bautieri
Quote:

Originally Posted by Missbumble
OK You convinced me...I think Iwill go for a run now...(Only cause i do not have a bike here at my virtual lcoation)

You're...welcome?

Enjoy the jog!