Running for one hour burns roughly 500 to 1,000 calories, depending primarily on your pace and body weight. A 155-pound person running at 6 mph (a 10-minute mile) burns about 685 calories in an hour, while a 180-pound person at the same pace burns closer to 800. Those numbers shift significantly as you speed up, slow down, or add hills.
Calories Burned by Speed and Weight
The most reliable way to estimate calorie burn is through MET values, a standardized measure of how much energy an activity demands compared to sitting still. The Compendium of Physical Activities, published in Medicine & Science in Sports & Exercise, assigns each running speed a specific MET value. Multiplying that value by your weight in kilograms gives you a close estimate of calories burned per hour.
Here’s what that looks like for three common body weights:
130 lbs (59 kg)
- 5 mph (12-min mile): ~490 calories
- 6 mph (10-min mile): ~578 calories
- 7 mph (8.5-min mile): ~649 calories
- 8 mph (7.5-min mile): ~696 calories
- 10 mph (6-min mile): ~856 calories
155 lbs (70 kg)
- 5 mph (12-min mile): ~581 calories
- 6 mph (10-min mile): ~686 calories
- 7 mph (8.5-min mile): ~770 calories
- 8 mph (7.5-min mile): ~826 calories
- 10 mph (6-min mile): ~1,015 calories
180 lbs (82 kg)
- 5 mph (12-min mile): ~681 calories
- 6 mph (10-min mile): ~804 calories
- 7 mph (8.5-min mile): ~902 calories
- 8 mph (7.5-min mile): ~968 calories
- 10 mph (6-min mile): ~1,189 calories
The pattern is straightforward: heavier runners burn more calories at every speed because it takes more energy to move more mass. And faster paces don’t just cover more ground, they demand exponentially more effort. Jumping from a 12-minute mile to a 10-minute mile adds roughly 100 calories per hour for a 155-pound runner, but jumping from an 8.5-minute mile to a 6-minute mile adds nearly 250.
Why Body Weight Matters More Than You Think
Your weight is the single biggest variable in the calorie equation, often more impactful than pace. A 180-pound person jogging at a relaxed 5 mph burns about 681 calories per hour. A 130-pound person would need to run closer to 7 mph to match that same burn. This is purely physics: moving a heavier body requires more force with every stride, and that force costs energy.
This also means calorie burn naturally decreases as you lose weight from running. A runner who drops from 180 to 160 pounds will burn roughly 10% fewer calories on the same route at the same speed, even though their fitness has improved. Your body becomes more efficient, which is great for performance but means you can’t rely on the same mileage to produce the same deficit over time.
Hills, Trails, and Other Terrain Effects
Running uphill increases calorie burn substantially. A rough guideline: for every 1% of incline grade, a 150-pound runner burns about 10 additional calories per mile, an increase of around 12%. That means a 5% incline on a treadmill or a moderately hilly outdoor route could push your hourly burn 50 to 60% higher than running the same pace on flat ground.
Trail running typically burns more than road running as well, even on relatively flat trails. Uneven footing forces your stabilizing muscles to work harder, and constant micro-adjustments in stride length and foot placement add up. Wind resistance outdoors also plays a small role that treadmill running eliminates entirely, though the effect is modest at typical jogging speeds.
The Afterburn Effect
Your body doesn’t stop burning extra calories the moment you stop running. After an hour-long run at moderate to high intensity (roughly 70% or more of your maximum effort), your metabolism stays elevated for 3 to 24 hours as your body repairs muscle tissue, replenishes energy stores, and returns to its resting state. This post-exercise calorie burn adds an extra 6 to 15% on top of whatever you burned during the run itself.
For a runner who burned 700 calories during their hour, that translates to an additional 42 to 105 calories afterward. It’s a meaningful bonus, but not the massive number that some fitness marketing suggests. The afterburn effect scales with intensity, so interval runs and tempo efforts generate more of it than easy jogs.
How Accurate Is Your Fitness Tracker?
If you’re relying on a smartwatch or fitness band to count your running calories, expect a significant margin of error. A systematic review of wrist-worn activity trackers found that calorie estimates were off by more than 30% across all major brands. None of the tested devices proved accurate for measuring energy expenditure. Some overestimate, some underestimate, and the error varies depending on your pace, arm swing, and body composition.
The MET-based estimates above are more reliable for planning purposes. If you want a quick mental shortcut, most runners burn roughly 80 to 120 calories per mile depending on their weight, with pace being a secondary factor. An hour of running at 6 mph covers 6 miles, so multiplying your per-mile estimate by 6 gets you in the right range.
Running Calories and Weight Loss
You may have heard that burning 3,500 calories creates one pound of fat loss. That rule is deeply embedded in fitness culture, but research shows it significantly overestimates how much weight you’ll actually lose. In one analysis, subjects lost about 7 pounds less than the 3,500-calorie rule predicted over the study period. The real math is more complex: your body adapts to a calorie deficit by lowering its resting metabolism, and weight loss follows a curve rather than a straight line. Early weeks produce faster results, which then taper off until you reach a new plateau, typically around 1.4 years into a sustained deficit.
What this means practically: if you add five hours of running per week and burn an extra 3,500 calories, you won’t lose a pound per week like the old formula promises. You’ll likely lose weight faster at first, then slower. Compensatory eating is also a real factor. Many runners unconsciously increase their food intake after hard efforts, partially or fully offsetting their calorie burn. Tracking your food alongside your mileage, at least initially, helps you understand whether running is actually creating the deficit you think it is.
Running vs. Walking for Calorie Burn
Running burns roughly twice the calories per hour as walking at a normal pace, which is its main advantage for time-pressed people. But the comparison gets interesting at higher walking speeds. Research published in The Western Journal of Medicine found that walking a mile at 5 mph uses at least as much energy as jogging a mile at the same pace. At that speed, walking becomes biomechanically awkward, and your body actually works harder to walk than to run.
For most people, though, sustained 5 mph walking isn’t realistic. At typical walking speeds of 3 to 3.5 mph, you’d burn roughly 250 to 350 calories per hour, compared to 580 to 800 calories running at 6 mph. Running’s time efficiency is its biggest draw: you get a comparable weekly calorie burn in half the hours. But if joint health or injury risk is a concern, longer walks can absolutely match the total burn of shorter runs, just not within the same 60-minute window.