Running calorie
calculator

Calories burned running a mile, from your bodyweight and pace. Compendium MET values, imperial or metric — with the gross-vs-net split and the reason a mile costs about the same fuel whatever pace you run it.

How the math works

Two steps. Each running speed has a MET value — its energy cost as a multiple of resting metabolism — from the 2011 Compendium of Physical Activities (Ainsworth et al. 2011). A MET is then turned into calories by the standard metabolic constant (ACSM Guidelines, 2021): 1 MET = 3.5 mL O₂/kg/min, and about 5 kcal per litre of oxygen. It's the same engine as the walking-calorie math; only the MET table changes.

The net line strips the resting metabolism a MET already includes, using (MET − 1)/MET. For running this matters less than for walking, because running METs are high: at a 6.0 mph jog (9.8 METs) the net is 8.8 / 9.8 = 90% of the gross, so only about a tenth of the figure is resting metabolism (against roughly a third for a 3.0 mph walk). Gross and net sit close together when you run.

Worked example

A 180 lb (81.6 kg) person runs at a steady 6.0 mph (9.7 km/h) — a 10 min/mile jog, 9.8 METs.

• Per minute: 9.8 × 3.5 × 81.6 / 200 = 14.0 kcal/min
• Per mile (gross): 14.0 × 10 min = 140 kcal/mile (87 kcal/km)
• Per mile (net): the run's own contribution is 126 kcal/mile (78 kcal/km); only about 14 kcal is resting metabolism
• A 3-mile (4.83 km) run in 30 min: 420 kcal gross, 377 kcal net

Now change only the pace. Because the running METs rise almost in step with speed, kcal/mile (which scales with MET ÷ speed) is nearly flat and even drifts down as you speed up: for this runner it's 142 kcal/mile at a 5 mph jog, 140 at 6 mph, 126 at 8 mph, and 122 at a 9 mph run. A mile costs about the same fuel whether you jog or race it — the opposite of walking, whose per-mile cost is a U with a floor at 3.0 mph. Faster running mostly finishes the mile sooner.

When this calculator is wrong

Two things people expect from a running-calorie number are both wrong, and the same arithmetic explains why. First, running a mile costs roughly the same energy no matter how fast you run it. The 2011 Compendium running METs rise almost in proportion to speed, so kcal/mile is nearly flat and drifts down across the jogging band: for a 180 lb runner the gross figure spans only 142 kcal/mile at 5 mph to 122 at 9 mph, and net is flatter still (126 to 112). "Run faster to burn more per mile" doesn't hold — faster running finishes the mile sooner, it doesn't add fuel per mile.

Second, the "running burns two to three times what walking does" claim is a per-minute comparison, not a per-mile one. A 6 mph run is 2.80× a 3.0 mph walk per minute for the same 180 lb person, but per mile it's only 1.40× (gross), because the run covers the mile in a third of the time. For "how much extra does choosing to run this distance add," the per-mile figure is the honest one — and net (1.76×) if you're isolating the activity's own cost.

• The exception is a fixed-time session. If your budget is 30 minutes rather than a set distance, faster running does burn more — an 8 mph run covers 4 miles to a 6 mph run's 3, so the per-minute view wins when time, not distance, is fixed.
• Grade, terrain, and wind aren't modelled. These are level, firm-surface values. Hills, trails, sand, and a stiff headwind all raise the real cost, and this tool doesn't account for any of them.
• The MET is a group mean. It's a lab average (Ainsworth et al. 2011), not your running economy, which varies enough between individuals to move the real cost by 10–15% at the same pace.

What to do with the result

Use the number to plan, then let the scale calibrate it. For running, gross and net are close (about 90% at a jog), so the choice between them matters less than it does for walking — but the net figure is still the honest input when you're sizing what running adds to a deficit. At roughly 126 net kcal/mile for a 180 lb runner, a 3-mile run adds about 377 net kcal; three of those a week is a little over 1,100 kcal. At the classic (and optimistic) 3,500 kcal per pound, that's close to a pound a month from the running alone, before the body adapts.

Because per-mile cost barely moves with pace, pick the pace by what your training calls for, not by chasing calories: an easy 6 mph run and a hard 9 mph run cost almost the same per mile, so run easy on easy days and save the intensity for when the session needs it. If the goal is total burn in a fixed time, distance is what moves it — and running longer or more often beats trying to run each mile faster. Then track your weight over two weeks against your intake and adjust by 100–200 kcal if it isn't moving as expected; your scale is a better measurement than any MET table.

Common questions

How many calories does running a mile burn?

For a 180 lb (81.6 kg) person at a 6.0 mph jog, about 140 kcal/mile gross — roughly 126 kcal of which is the run itself and only about 14 kcal resting metabolism. It scales with bodyweight: a 130 lb (59 kg) runner is around 101 kcal/mile at the same pace. And it barely changes with pace, so this figure holds across most of the running range.

Does running faster burn more calories?

Per minute, yes. Per mile, no — if anything slightly less. Because the running METs rise almost in step with speed, kcal/mile is nearly flat and drifts down across the jogging band: for a 180 lb runner it's about 142 kcal/mile at 5 mph, 140 at 6 mph, 126 at 8 mph, and 122 at 9 mph. Running faster mostly finishes the mile sooner; it doesn't add fuel per mile. In a fixed time, though, faster running covers more miles, so it does burn more per session.

Is running or walking better for burning calories?

Per mile, running burns more, but not the "double or triple" figure often quoted. For a 180 lb person a 6 mph run is about 140 kcal/mile gross versus 100 for a 3.0 mph walk — roughly 1.4× per mile (1.76× on net). The 2–3× figure is the per-minute ratio (2.80×), which is true but conflates speed with distance: the run just covers the mile in a third of the time.

How many calories does a 30-minute run burn?

At 6.0 mph a 30-minute run is 3 miles, about 420 kcal gross (377 net) for a 180 lb runner. Speed up to 8 mph and the same 30 minutes covers 4 miles for about 505 kcal gross — the per-mile cost is similar, but you've run more miles. For a fixed time budget, pace does move the total.

Is this gross or net calories?

The headline is gross — the full MET-based figure, which includes the resting calories you'd have burned anyway. The "net" line strips that out using (MET − 1). For running the two are close: at a jog the net is about 90% of the gross, so running overstates its own added cost by only about a tenth, versus roughly a quarter for walking.

How accurate is a running calorie calculator?

The MET method is a group average from lab measurements, so an individual's real cost varies by roughly 10–15% with running economy and body composition, before grade, terrain, and wind are even considered. It's a good planning estimate and a poor precise ledger — which is why calibrating against your actual weight beats trusting the calorie readout.