How accurate is this walking calorie calculator?

This calculator provides a reasonable estimate based on scientifically-established MET values. However, actual calorie burn can vary by 10-20% depending on individual factors like fitness level, walking efficiency, arm movement, and environmental conditions. For the most accurate tracking, consider using a heart rate monitor.

Does walking speed really make that much difference?

Yes, walking speed significantly impacts calorie burn. Brisk walking at 4 mph burns roughly 50% more calories per minute than slow walking at 2 mph. Power walking can approach the calorie burn of light jogging while being easier on your joints.

Is walking good for weight loss?

Walking is excellent for weight loss and weight maintenance. A 30-minute brisk walk (3.5 mph, 4.3 MET) burns an estimated 130-250 calories depending on your weight. Combined with a balanced diet, regular walking can create a sustainable calorie deficit. The key advantage is that walking is low-impact and sustainable long-term.

Why do heavier people burn more calories walking?

Moving a heavier body requires more energy. Your muscles must work harder to propel and support additional weight with each step. This is why calorie calculations always factor in body weight—a 200-pound person burns significantly more calories than a 130-pound person walking at the same pace.

Should I eat back the calories I burn walking?

It depends on your goals. If you're trying to lose weight, eating back all burned calories may slow your progress. If you're maintaining weight or very active, you may need those extra calories. A good approach is to eat back about 50% of exercise calories if you feel hungry, as calorie burn estimates aren't perfect.

How does walking compare to running for burning calories?

Running burns more calories per minute—roughly twice as much at moderate speeds. However, walking is more sustainable and easier on joints. For the same distance, running and walking burn similar total calories, but running gets you there faster. Many people can walk for an hour but struggle to run that long.

How Many Calories Do You Burn Walking? (Calculator)

Calculate calories burned walking by weight, pace, and duration. Free MET-based walking calorie calculator with science-backed formulas.

Quick answer

Walking burns about 207–326 calories per hour, or 103–163 calories in 30 minutes, for adults weighing 130–205 lb (59–93 kg). That estimate uses a MET value of 3.5 (moderate (3 mph)); see the table below for other intensities. These figures are estimates from population-average MET values, not measurements of your own energy expenditure — actual burn varies with intensity, fitness, body composition and technique.

Example calculation

A 155 lb (70 kg) adult — moderate (3 mph) — for 30 minutes:

3.5 MET × 70 kg × 0.5 h = 123 calories

That is 245 calories per hour, or about 4.1 calories per minute.

Calories burned walking per hour, by body weight

Calories burned per hour by walking pace and body weight (MET method).
Walking pace	MET	130 lb (59 kg)	155 lb (70 kg)	180 lb (82 kg)	205 lb (93 kg)
Slow (under 2 mph)	2	118 cal	140 cal	164 cal	186 cal
Moderate (3 mph)	3.5	207 cal	245 cal	287 cal	326 cal
Brisk (3.5 mph)	4.3	254 cal	301 cal	353 cal	400 cal
Fast (4 mph)	5	295 cal	350 cal	410 cal	465 cal
Power walking (4.5+ mph)	7	413 cal	490 cal	574 cal	651 cal

Calories burned in 30 minutes

Calories burned in 30 minutes of walking, by body weight.
Walking pace	130 lb (59 kg)	155 lb (70 kg)	180 lb (82 kg)	205 lb (93 kg)
Slow (under 2 mph)	59 cal	70 cal	82 cal	93 cal
Moderate (3 mph)	103 cal	123 cal	144 cal	163 cal
Brisk (3.5 mph)	127 cal	151 cal	176 cal	200 cal
Fast (4 mph)	148 cal	175 cal	205 cal	233 cal
Power walking (4.5+ mph)	207 cal	245 cal	287 cal	326 cal

Method and formula

Calories = MET × body weight in kilograms × duration in hours. MET (Metabolic Equivalent of Task) expresses the energy cost of an activity as a multiple of resting metabolism, where 1 MET ≈ 1 kcal per kilogram of body weight per hour. Pounds are converted with lb ÷ 2.20462 = kg. Totals are rounded to the nearest whole calorie and per-minute figures to one decimal; no rounding is applied before the final step.

MET values for walking are taken from the 2011/2024 Adult Compendium of Physical Activities.

What changes the result

Body weight: Directly proportional — doubling body weight doubles the estimate at the same MET and duration.
Duration: Directly proportional — calories scale linearly with time at a constant intensity.
Intensity: Sets the MET value. Moving one intensity step up typically raises burn 20–40%.
Terrain and incline: Not in the base MET value; uphill or resistance work increases the true cost.
Fitness and efficiency: Trained people use less energy for the same output, so estimates skew high for them.
Age, sex and body composition: Change resting metabolism and therefore the baseline the MET multiplies.

Limitations

Hills, headwind, soft ground and carrying a load raise the real cost above the flat-ground MET value.
Very fit walkers move more efficiently and may burn slightly less than the table suggests.
Every figure here is an estimate, not a measurement — treat it as a planning number rather than a result.
MET values are population averages from the Compendium of Physical Activities; individual results commonly differ by 10–20%.
Actual intensity and pace matter more than the label: two people at the same nominal intensity can differ substantially in real effort.
Body composition and cardiorespiratory fitness change the result — more lean mass raises the baseline, while trained people move more efficiently and often burn less than the table shows.
Terrain, incline, surface and movement technique are not captured by a flat-ground MET value.
These are gross calories — they include the resting energy you would have burned anyway during that time.
MET tables are standardised on a 70 kg adult, so estimates are least accurate at very low or very high body weights.
Heart-rate monitors, wearables and laboratory indirect calorimetry can all give different numbers; measured testing is more accurate for an individual than any MET-based estimate.

Last updated: August 6, 2026