How many calories does running burn per km?

Calories burned per km running depends on body weight. Unlike walking (where heavier people burn roughly proportionally more), running has a slightly different relationship due to higher MET values at moderate speeds: At moderate run pace (9.7 km/h, MET 9.8): • 50 kg: ~50 kcal/km • 60 kg: ~61 kcal/km • 70 kg: ~71 kcal/km • 75 kg: ~76 kcal/km • 80 kg: ~81 kcal/km • 90 kg: ~91 kcal/km • 100 kg: ~101 kcal/km Interesting finding: running burns approximately similar calories per km regardless of pace, because faster running covers more distance in the same time. The main per-km variable is body weight. However, faster running burns significantly more per minute than slower running. For maximising total calorie burn in a fixed time, faster is better. For maximising total calorie burn from a fixed distance, pace matters much less than weight. Running burns approximately 50–70% more calories per km than walking at the same distance, primarily because the MET value is roughly double.

What is EPOC and does it really burn extra calories?

EPOC (Excess Post-Exercise Oxygen Consumption) is the elevated metabolic rate that persists after exercise ends. Colloquially called 'afterburn' — your body continues burning extra calories as it returns to baseline. Mechanisms of EPOC: • Restoration of oxygen stores in blood and muscle • Lactate clearance and resynthesis to glycogen • Muscle repair and protein synthesis • Body temperature normalisation • Hormone restoration (cortisol, epinephrine) EPOC magnitude by intensity: • Easy jog (6–8 km/h): 3–5% extra — minimal afterburn, lasts ~30–60 min • Moderate run (9–11 km/h): 6–8% extra — moderate afterburn, lasts 1–2 hours • Hard/fast run (12+ km/h): 9–14% extra — significant, lasts 12–24 hours • Sprint intervals/HIIT: 15–20%+ extra — highest EPOC per minute Practical example: a 30-min moderate run burning 390 kcal + 7% EPOC = ~27 extra kcal. Not transformative on its own, but meaningful over time. IMPORTANT: EPOC is often overstated in fitness marketing. For most steady-state running, EPOC adds 5–10% to total calorie burn — meaningful but not a 'magic multiplier.'

How many calories does a marathon or half marathon burn?

Calories burned in a marathon or half marathon depend heavily on pace (which determines duration) and body weight. Using the MET method: Full Marathon (42.195 km): • 75 kg runner at moderate pace (9.7 km/h, 4:21 finish): ~3,230 kcal • 75 kg runner at tempo (10.8 km/h, 3:54 finish): ~3,038 kcal • 80 kg runner at moderate pace: ~3,445 kcal • 70 kg runner at fast pace (11.3 km/h, 3:44 finish): ~3,250 kcal Half Marathon (21.0975 km): • 75 kg at moderate pace (2:10 finish): ~1,615 kcal • 80 kg at moderate pace (2:10 finish): ~1,723 kcal Key insight: the faster you run a marathon, the fewer calories you burn — because you spend less time running. Body weight is the dominant factor. Why runners 'hit the wall': at ~30–33 km in a marathon, most runners deplete their glycogen stores (~400–500g stored carbohydrate = ~1,600–2,000 kcal). Nutrition strategy (gels every 30–45 min) is essential for performance beyond 90 minutes.

Does running on a treadmill burn fewer calories than running outside?

Yes — treadmill running burns slightly fewer calories than outdoor running at the same pace. This is primarily due to: 1. No wind resistance: Outdoors, your body works against air resistance, which adds ~2–5% to energy expenditure at typical running speeds (increases with pace — significant above 16 km/h). 2. Belt assistance: The treadmill belt moves under your foot, slightly reducing the push-off work your calf muscles need to do. Estimated difference: ~5–7% fewer calories on a treadmill vs outdoor running at the same speed. Our calculator applies −1.0 MET for treadmill. Compensation tip: setting a 1% incline on the treadmill roughly compensates for the wind resistance deficit at moderate running speeds (8–12 km/h). At higher speeds, 1.5–2% incline is needed. Other factors that differ between treadmill and outdoor: • Surface — treadmill is softer (slightly lower impact) • Terrain variation — outdoor running uses more stabilising muscles • Temperature — hot outdoor conditions increase effort; treadmills are typically climate-controlled

How does running compare to walking for calorie burn?

Running burns significantly more calories per minute than walking, but only slightly more per kilometre: For an 80 kg person: Per MINUTE: • Moderate walk (4.8 km/h): 4.7 kcal/min • Easy run (8.4 km/h): 12.0 kcal/min (+155%) • Moderate run (9.7 km/h): 13.1 kcal/min (+179%) • Hard run (12.1 km/h): 15.3 kcal/min (+226%) Per KILOMETRE: • Moderate walk: ~87 kcal/km • Easy run: ~85 kcal/km (similar!) • Moderate run: ~81 kcal/km (slightly less!) The per-km paradox: because higher-MET running covers more ground faster, the calorie burn per km actually stays relatively stable. Research (e.g. Bhambhani & Singh, 1985) confirms that for distances up to 5 km, walking and running burn similar total calories. Conclusion: if you have TIME — run, you'll burn more. If you have DISTANCE — walking is nearly as effective. For weight management, the best exercise is whatever you'll do consistently.

What pace should I run to burn the most calories?

For maximum calorie burn, the answer depends on your goal: For maximum calories per MINUTE — run as fast as you safely can sustain. MET scales with speed, so 16 km/h burns nearly 3× more kcal/min than 8 km/h. High-intensity intervals (alternating fast running with recovery) maximise per-minute burn and EPOC. For maximum calories per SESSION (fixed time) — maintain the fastest pace you can sustain for the full duration without slowing significantly. For most people, this is a tempo or 'comfortably hard' effort — about 80–85% of maximum heart rate. For sustainable calorie burn over weeks — a pace you can consistently maintain 4–5 times per week without injury. Running 5 × 30 min at a moderate pace beats 1 × 90 min at maximum effort followed by 5 days of recovery. For weight loss specifically — combining any running with a calorie deficit diet is what drives results. Running at 8 km/h for 30 min (80 kg person): ~332 kcal. Combined with a 500 kcal/day food deficit: ~832 kcal total deficit per day on run days. This produces ~0.75 kg/week fat loss. Rule of thumb: the 'best' running pace for calorie burn is as fast as you can maintain for the full intended duration, consistently, without injury.

Calories Burned Running Calculator — MET Method

The Calories Burned Running Calculator uses MET (Metabolic Equivalent of Task) values from the Compendium of Physical Activities (Ainsworth 2011) to calculate calories burned across 12 running paces — from Very Slow Jog (6.4 km/h, MET 6.0) through Fast Sprint (19.3 km/h, MET 19.0). Includes terrain modifiers for treadm..

YOUR RUN

BODY WEIGHT (kg)

HEIGHT (for stride / step count)

RUNNING PACE

TERRAIN

CALCULATE FROM

DURATION (minutes)

min

YOUR RESULTS

CALORIES BURNED

368

kcal · MET 9.8

DURATION

30 min

DISTANCE

4.9 km

STEPS

3,647

PACE

6:11

min/km

PACE

9:57

min/mile

+ EPOC (afterburn)

393

kcal total (+7%)

IF 5 RUNS / WEEK

1,838

kcal/week

vs MODERATE WALK (same duration)

WALKING

131

RUNNING

368

EXTRA

+236

Base 9.8= 9.8 total MET

CALORIES BURNED BY PACE (30 min · 75.0 kg)

RACE DISTANCE RESULTS — Moderate Run

Race	Distance	Finish Time	Calories
1K	1.0 km	6 min	76
5K	5.0 km	31 min	379
10K	10.0 km	1h 2m	758
Half Marathon	21.1 km	2h 11m	1,599
Full Marathon	42.2 km	4h 21m	3,197

368 KCAL IS APPROXIMATELY...

🍕 Pizza slices1.3×285 kcal

🍫 Chocolate bars1.6×230 kcal

🍺 Pints of beer1.8×208 kcal

🍌 Bananas3.5×105 kcal

🥤 Cans of cola2.6×140 kcal

🍪 Digestive biscuits5.2×71 kcal

Created with❤️byeaglecalculator.com

HOW TO USE

1
Enter your body weight and height. Weight is the primary driver of calorie burn — heavier runners burn more calories at the same pace. Height is used to estimate running stride length (0.76 × height in metres), which converts distance to approximate step count.
2
Select your running pace from 12 options ranging from Very Slow Jog (6.4 km/h, MET 6.0) to Fast Sprint (19.3 km/h, MET 19.0). Each pace shows speed in both km/h and mph, the min/km pace equivalent, and the MET value. The pace bar chart on the right instantly updates to show calorie burn at all 12 paces for direct comparison.
3
Choose your terrain. Treadmill running (−1.0 MET) burns slightly fewer calories than outdoor running at the same pace due to reduced wind resistance and belt assistance. Uphill running dramatically increases burn: a steep hill (10%+ gradient) adds 6.0 MET — up to 75% more calories than flat running at the same pace. Trail running adds 1.5 MET for technical uneven surfaces.
4
Select your input mode — Duration (minutes) or Distance (km or miles). The calculator derives the other value automatically based on your selected pace. Both min/km and min/mile pace are always shown in results, along with approximate step count.
5
Read all your results: calories burned, duration, distance, pace in both min/km and min/mile, EPOC (afterburn) estimate, and a weekly total assuming 5 runs per week. The race distance table on the right shows finish times and calorie burn for 1K, 5K, 10K, Half Marathon, and Full Marathon at your selected pace. The running vs walking comparison shows how many extra calories running burns vs a moderate walk for the same duration.

WORKED EXAMPLE

Calories burned running calculation for a 75 kg, 175 cm person: EXAMPLE 1 — 30 min moderate run, flat road: Pace: Moderate run = 9.7 km/h = MET 9.8 Terrain: Flat = 0 bonus Total MET = 9.8 Calories = 9.8 × 75 × (30/60) = 9.8 × 75 × 0.5 = 368 kcal Distance = 9.7 × 0.5 = 4.85 km Pace = 60 / 9.7 = 6:11 min/km | 9:56 min/mile Stride = 0.76 × 1.75 = 1.33 m per stride Steps ≈ 4,850 m / 1.33 m = ~3,647 strides (×2 = ~7,293 footsteps) EPOC (moderate pace, 7%): 368 × 1.07 = 394 kcal total EXAMPLE 2 — Same 30 min on a moderate hill: Total MET = 9.8 + 3.5 (hill) = 13.3 Calories = 13.3 × 75 × 0.5 = 499 kcal (+36% vs flat) RACE DISTANCE RESULTS (75 kg, moderate run 9.7 km/h): 1K: 6:11 finish | 81 kcal 5K: 30:56 finish | 404 kcal 10K: 61:51 finish | 808 kcal Half: 2h 11m finish | 1,702 kcal Full: 4h 21m finish | 3,404 kcal RUNNING vs WALKING (75 kg, 30 min): Moderate walk (MET 3.5): 131 kcal | 2.4 km Moderate run (MET 9.8): 368 kcal | 4.85 km Extra calories from running: +237 kcal (+181%)

REFERENCE FORMULAS

FORMULA REFERENCE TABLE

Name	Formula	Description
MET calorie formula	Calories = MET × weight(kg) × duration(hrs)	Source: Compendium of Physical Activities (Ainsworth et al. 2011). Adjusts automatically for body weight.
Total MET (with terrain)	Total MET = pace MET + terrain bonus	Terrain bonuses: treadmill −1.0, flat 0, slight +1.5, moderate +3.5, steep +6.0, trail +1.5.
Running stride length	Stride(m) = 0.76 × height(m)	Running stride is ~84% longer than walking stride (0.413 × height). Increases with speed.
Steps from distance	Steps = distance(m) / stride(m)	Approximate step count. Running cadence is typically 160–180 steps/min for trained runners.
Pace (min/km)	Pace = 60 / speed(km/h)	Example: 10 km/h = 6:00 min/km. 12 km/h = 5:00 min/km.
Pace (min/mile)	Pace = 60 / (speed_kph / 1.60934)	Example: 10 km/h = 9:39 min/mile. 16 km/h = 6:02 min/mile.
EPOC (afterburn)	Total = calories × (1 + EPOC rate)	Slow jog ~4%; moderate run ~7%; hard/fast run ~10%. EPOC elevates metabolism for hours post-exercise.
Slow run MET	MET = 8.3 (8.0 km/h)	Reference MET for a typical beginner to intermediate running pace.
Moderate run MET	MET = 9.8 (9.7 km/h)	Standard reference pace. 10 km in ~61 minutes; comfortable conversation pace.
5K race pace MET	MET = 14.5 (16.1 km/h)	Competitive 5K pace (~19:00–20:00 min finish). Very high intensity.
Steep hill running	+6.0 MET (10%+ gradient)	Running steeply uphill can increase calorie burn by 60–75% vs flat running at same pace.

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Last updated: April 29, 2026 · MET values: Compendium of Physical Activities (Ainsworth et al. 2011) · Eagle-eyed accuracy for every calculation.