How many calories do you burn running a mile? For most adults, the answer is 100 to 150 calories, and body weight is the biggest factor. A 155-pound runner burns about 125 calories per mile, while a 185-pound runner burns closer to 150.
Those figures come from the energy equations the American College of Sports Medicine (ACSM) uses, and they match the calorie charts from Harvard Health Publishing. Pace matters less than most runners expect. Below you will find numbers by body weight, the math behind them, what pushes them up or down, and why your watch may show something different.
Calories Burned Running a Mile by Body Weight
The estimates below assume one mile at a steady 10-minute pace on flat ground. The net column counts only the extra energy running costs. The total column also includes what your body would have burned during those ten minutes anyway.
| Body Weight | Net Calories | Total Calories |
| 125 lb | 91 | 101 |
| 155 lb | 113 | 125 |
| 185 lb | 135 | 150 |
| 220 lb | 161 | 178 |
| 250 lb | 183 | 202 |
For comparing running to food, use the net column. It shows what you add to your day’s burn by running. A medium banana, which USDA FoodData Central lists at about 105 calories, roughly matches the net cost of a mile for a runner around 145 pounds.
Treat every number as an estimate with a margin of about 10 percent. Runners of the same weight can differ because of form, shoes, fitness, and the surface they run on.
The Formula Behind the Numbers
Net calories per mile is about 0.73 times your body weight in pounds. A 170-pound runner multiplies 170 by 0.73 and gets roughly 124 calories. Swap in your own weight, and you have a working estimate in ten seconds.
The 0.73 comes from the ACSM running equation, which puts the oxygen cost of level running at 0.2 milliliters per kilogram of body weight for every meter covered. Converted to energy, one mile costs about 1.6 calories per kilogram. Physiologist Rodolfo Margaria and colleagues found nearly the same cost, about 1 calorie per kilogram per kilometer, in a 1963 study in the Journal of Applied Physiology.
A second method uses MET values from the Compendium of Physical Activities, which rates running at 6 miles per hour at 9.8 METs. For a 155-pound runner, that gives about 115 calories for a 10-minute mile, compared with 125 from the ACSM equation. A gap of ten calories between methods is normal.
Net Versus Total Calories: Why Online Numbers Disagree
If you have searched this question before, you probably saw figures from 80 to 150 for the same runner. Much of that gap is the net versus total difference. A net figure subtracts the calories you would have burned sitting still, while a total figure keeps them.
For a 155-pound runner, resting burn during a 10-minute mile is about 12 calories, which is why the two columns in the chart above sit 12 calories apart. Fitness apps often show total calories, and many calculators show net, without saying which.
Check which one your tool reports before comparing it to anything. For weight management, net is the honest number, because your daily calorie target already includes resting burn.
Why Pace Barely Changes Calories Per Mile
Running faster burns more calories per minute, but you spend fewer minutes covering the mile. The two effects mostly cancel. For a 155-pound runner, the ACSM equation gives about 128 calories for a 12-minute mile and about 123 for an 8-minute mile.
Per minute, though, the difference is large. The same runner burns roughly 11 calories a minute at a 12-minute pace and about 15 at an 8-minute pace. That is why a 30-minute run at a faster speed burns more in total: you cover more miles.
Harvard Health Publishing’s activity chart shows this. A 155-pound person running 30 minutes at 5 miles per hour burns about 288 calories, and at 6 miles per hour about 372.
So if your goal is calories per workout, time and distance both count. If your goal is calories per mile, pace is a minor detail. Slow runners are not at a disadvantage, and fast runners do not get a bonus on each mile.
Running a Mile vs Walking a Mile
Walking a mile at 3.5 miles per hour burns about 85 calories for a 155-pound person, based on Harvard Health Publishing’s figure of 149 calories for 30 minutes of brisk walking. Running the same distance burns about 125, roughly 45 percent more.
The gap is smaller than many people assume, and walking has a real advantage: it is easier to repeat daily. A 17-minute walk costs less recovery than a 10-minute run. Per minute, running burns more than twice as much, which makes it the better pick when time is short.
What Changes Your Number
1. Body Weight and Composition
Weight is the dominant input because you carry it for the whole mile. The ACSM equation uses body weight alone. In practice, the more mass you move, the more you burn.
2. Age and Sex
The ACSM equation does not use age or sex, because the cost of moving a body over a mile depends mostly on that mass. Women often weigh less than men and so burn fewer total calories per mile, but at equal weight the gap is small. Resting metabolic rate tends to fall with age, which affects your daily burn more than the cost of any single mile.
3. Incline and Treadmill Settings
Hills raise the cost fast. The ACSM equation adds about 20 percent to the cost of running at 6 miles per hour on a 5 percent grade, which turns a 125-calorie mile for a 155-pound runner into roughly 150.
Treadmills remove wind resistance, so a flat treadmill run tends to cost a little less than the same pace outside. A 1996 study by Jones and Doust in the Journal of Sports Sciences found that a 1 percent incline best matches outdoor running. Setting the belt to 1 percent is an easy fix.
4. Wind and Terrain
Air resistance takes a small share of energy at an easy jog. L.G.C.E. Pugh estimated about 8 percent at middle-distance race speeds in a 1970 paper in the Journal of Physiology, and a headwind raises it. Sand, snow, and soft trails cost more than pavement because each step loses some push-off.
5. Fitness and Running Form
Trained runners are usually more efficient and use somewhat less oxygen at the same pace. Running economy varies between people by several percent at the same pace and weight. Efficiency gains help racing, but they trim your calorie burn slightly.
Work Out Your Own Number in Three Steps
Start with your weight in pounds and multiply it by 0.73 to get net calories per mile. Then multiply by the miles you ran. If your run was on a treadmill, set the incline to 1 percent first so the estimate matches outdoor effort.
Take a 140-pound runner who does a 4-mile loop. Multiply 140 by 0.73 to get about 102 calories per mile, then by 4 for roughly 409 net calories. For a 210-pound runner covering the same loop, the same steps give about 153 per mile and 613 for the loop.
Hills change the result. Add about 20 percent for a 5 percent grade, or about 8 percent for a 2 percent grade at the same speed. Those increases follow the ACSM grade term, which adds a fixed amount of oxygen cost for each percent of incline.
Calories Burned Over Longer Distances
Multiply net calories per mile by the distance. The table uses the 155-pound runner’s 113 net calories per mile.
| Distance | Miles | Net Calories |
| 1 mile | 1 | 113 |
| 5K | 3.1 | 350 |
| 10K | 6.2 | 701 |
| Half marathon | 13.1 | 1,480 |
| Marathon | 26.2 | 2,961 |
Long-distance calories scale in a straight line in these estimates, but real marathons rarely do. Fatigue, fueling, and pacing changes add some variation, so use the longer figures as rough guides.
Why Your Watch Shows a Different Number
Wearables estimate calories from heart rate, motion, and the profile you entered, and the estimate can miss. A 2017 Stanford study in the Journal of Personalized Medicine tested seven wrist-worn devices on 60 volunteers. Heart rate readings were mostly accurate, but energy expenditure errors ranged from 27 percent to 93 percent.
Check that your weight and age are entered correctly, since the estimate depends on them. If the watch says 180 calories for a mile and your formula says 125, trust the formula for planning and the watch for comparing one run to the next.
Treadmill consoles are another source of error. Holding the handrails lowers the real energy cost, but the console still counts the full amount, so hands-free running gives the closest match.
Does a Mile Keep Burning Calories Afterward?
Hard exercise raises your metabolism for hours afterward, an effect called excess post-exercise oxygen consumption, or EPOC. In a 2011 study in Medicine and Science in Sports and Exercise, Knab and colleagues found that 45 minutes of vigorous cycling kept the metabolic rate elevated for 14 hours and added about 190 calories.
That was a long, hard session. A single easy mile is unlikely to produce more than a small afterburn, so do not add extra calories to your total for it. Longer and harder sessions are where afterburn becomes noticeable.
How Many Miles Does It Take to Lose a Pound?
The classic rule says a pound of body fat holds 3,500 calories. By that math, a 155-pound runner at 113 net calories per mile needs about 31 miles to burn a pound.
Real results are slower. Kevin Hall and colleagues showed in a 2011 Lancet paper that the 3,500-calorie rule overstates weight change over time, because the body adjusts its energy use as weight drops. For many people, appetite also rises with more exercise, and a post-run snack can erase the whole mile.
The reason to run is bigger than one mile’s burn. The Physical Activity Guidelines for Americans (2nd edition, 2018) from the U.S. Department of Health and Human Services recommend 150 minutes a week of moderate activity or 75 minutes of vigorous activity for adults. Running counts as vigorous for most people.
Using the Numbers Without Overthinking Them
Pick the formula, use your real weight, and stick with it. Consistency matters more than precision, because you are comparing weeks against weeks. If you run three miles on a Saturday at 155 pounds, expect about 340 net calories, and update your weight in the formula once a month.
Eat according to hunger and training load. A mile is about 100 to 150 calories, which is a small snack, so a large post-run meal usually puts you ahead of where you started.
If you are new to running, start with run-walk intervals and build slowly. People with heart disease, diabetes, joint problems, or pregnancy should check with a doctor before starting a running program. A registered dietitian can set a calorie target that fits your situation.
So, how many calories do you burn running a mile? Roughly 0.73 calories per pound of body weight, which lands most runners between 100 and 150 calories.
