How many calories does running burn?

A common rule of thumb is that running burns about 100 calories per mile (62 per kilometer) for a 70 kg / 155 lb adult, almost independent of pace within the moderate range. The exact number scales with body weight: a 90 kg / 200 lb runner burns about 30 percent more per mile than a 60 kg / 132 lb runner at the same pace. Faster paces burn slightly more per kilometer due to higher mechanical work, but the per-mile estimate stays within plus or minus 10 percent across the 5 to 12 mph range.

Does pace affect calories burned?

Yes, but less than most people assume. Running at 6 mph burns roughly the same calories per mile as running at 8 mph: in both cases your body weight has to be moved through the same distance. What changes is calories per hour. A 70 kg runner at 6 mph burns about 700 calories per hour; at 8 mph the same runner burns about 950 calories per hour, simply because they cover more ground in the hour. For weight loss, distance matters more than speed.

MET stands for Metabolic Equivalent of Task. One MET equals the energy your body uses at rest, roughly 1 kcal per kg of body weight per hour. Activities are rated by how much more energy they burn relative to rest. Sitting is 1 MET, walking at 3 mph is 3.5 METs, jogging at 5 mph is about 8 METs, hard running at 10 mph is about 14.5 METs. The Compendium of Physical Activities published by the American College of Sports Medicine is the standard reference.

Are smartwatch calorie estimates accurate?

Smartwatches typically estimate calories within plus or minus 25 percent of true energy expenditure, with notable systematic biases. Most overestimate calories at low intensities (walking) and underestimate at high intensities (sprints). Watches with chest-strap heart rate input are more accurate than wrist-only. A MET-based calculation from distance, pace, and weight is competitive with watch estimates for steady-pace runs and is the standard formula research uses.

How do I burn 500 calories running?

For a 70 kg / 155 lb adult, 500 calories burned running is roughly 5 miles or 8 kilometers at any pace from a jog to a fast run. Lighter runners need to cover more distance for the same caloric expenditure; heavier runners cover less. Increasing pace from 6 mph to 8 mph cuts the time roughly in half (40 minutes versus 25 minutes) without changing the distance you need. For sustainable weight loss, prefer longer easy runs to short hard ones — the caloric math is similar and the recovery cost is much lower.

Tools · Calories burned running

Calories burned running calculator.

Updated 2026-05-23 · 7 min read

Enter your weight, the distance you ran, and your average pace. The calculator uses standard MET values from the Compendium of Physical Activities to estimate calories burned. Switch between kg/lb and km/mi freely; the math runs in your browser.

How the math works

The standard formula for energy expenditure from steady-pace activity is: calories per hour equals MET multiplied by body weight in kilograms. Total calories for a workout is that rate multiplied by hours of activity. The MET value depends on activity intensity; for running, MET goes from 8.3 (jog, 12:00/mi pace) up to about 19 at sub-5:00/mi race pace.

For practical purposes, runners often use a simpler rule: your body weight in pounds, multiplied by 0.75, equals calories burned per mile. A 160 lb runner burns about 120 calories per mile at any moderate pace. This ignores pace-dependent intensity but gets you within 15 percent of the MET-based estimate across normal training paces.

What this calculator does not capture: caloric burn after the workout ends (EPOC, "afterburn"), individual variation in metabolic efficiency, the higher cost of running on hills or trails versus flat road, and the lower cost of running downhill. For a single moderate-effort steady-state run, the MET estimate is accurate to about plus or minus 10 percent.

Calories per km by body weight (jog, 6 min/km pace)

Weight	kcal/km	kcal/mile	kcal/5K	kcal/10K
50 kg / 110 lb	49	78	243	486
60 kg / 132 lb	58	93	291	583
70 kg / 155 lb	68	110	340	680
80 kg / 176 lb	78	125	388	776
90 kg / 198 lb	87	140	437	874
100 kg / 220 lb	97	156	486	971

Values use MET 9.8 (jog pace) × weight (kg) × duration (hours), rounded.

Related tools

Calories burned cycling calculator — same MET-based approach for cycling.
Marathon pace calculator — pair your training pace with race targets.
Heart rate zones calculator — train in the right intensity zone.
Pace converter — switch min/km, min/mile, mph, kph.
Live GPS speedometer — measure your real-time speed and pace.

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