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Walking Calorie Calculator

Estimate how many calories you burn walking by entering your weight, walking speed, and duration. Results use validated MET (Metabolic Equivalent of Task) values from exercise science research.

Units:
Enter your weight and duration to see calories burned.

Quick answer

A 70 kg (154 lb) person walking at a moderate pace of 3 mph for 30 minutes burns approximately 123 calories. Calorie burn increases with body weight, walking speed, and duration — a heavier person walking faster burns significantly more. For example, a 90 kg person walking briskly at 3.5 mph for 45 minutes burns around 290 calories. Walking is one of the most accessible forms of aerobic exercise, and even a 20-minute daily walk can contribute meaningfully to a caloric deficit over time.

Formula & method

Calories = MET × weight_kg × duration_hours
  • MET — Metabolic Equivalent of Task — a dimensionless ratio of activity energy to resting energy
  • weight_kg — Body weight in kilograms
  • duration_hours — Duration of walking in hours (minutes ÷ 60)

MET (Metabolic Equivalent of Task) represents energy expenditure relative to rest. Walking MET values: slow (2 mph) = 2.5, moderate (3 mph) = 3.5, brisk (3.5 mph) = 4.3, fast (4 mph) = 5.0.

Examples

Example 1: Moderate 30-Minute Walk — 70 kg Person
Input
weight: 70 kg | speed: 3 mph (moderate) | duration: 30 minutes
Result
123 calories
Why
MET for moderate walking (3 mph) = 3.5. Calories = 3.5 × 70 × (30 ÷ 60) = 3.5 × 70 × 0.5 = 122.5 ≈ 123 calories.
Example 2: Brisk 45-Minute Walk — 90 kg Person
Input
weight: 90 kg | speed: 3.5 mph (brisk) | duration: 45 minutes
Result
290 calories
Why
MET for brisk walking (3.5 mph) = 4.3. Calories = 4.3 × 90 × (45 ÷ 60) = 4.3 × 90 × 0.75 = 290.25 ≈ 290 calories.
Example 3: Slow 60-Minute Walk — 60 kg Person
Input
weight: 60 kg | speed: 2 mph (slow) | duration: 60 minutes
Result
150 calories
Why
MET for slow walking (2 mph) = 2.5. Calories = 2.5 × 60 × (60 ÷ 60) = 2.5 × 60 × 1.0 = 150 calories.
Example 4: Fast 20-Minute Walk — 80 kg Person
Input
weight: 80 kg | speed: 4 mph (fast) | duration: 20 minutes
Result
133 calories
Why
MET for fast walking (4 mph) = 5.0. Calories = 5.0 × 80 × (20 ÷ 60) = 5.0 × 80 × 0.3333 = 133.3 ≈ 133 calories.

Frequently asked questions

How accurate is the MET method for calculating walking calories?

The MET method is widely validated in exercise science and gives a reliable estimate for most healthy adults. Individual factors like fitness level, terrain incline, and carrying weight can cause real burn to vary ±10–15% from the estimate.

Does walking speed really make a big difference in calories burned?

Yes, significantly. Going from a slow stroll at 2 mph (MET 2.5) to a fast walk at 4 mph (MET 5.0) doubles the calorie burn per unit of time, even though you cover twice the distance in the same duration.

How does body weight affect calories burned while walking?

Calories burned are directly proportional to body weight. A 90 kg person burns 28.6% more calories than a 70 kg person walking at the same speed and duration, because more energy is required to move a heavier body.

Does walking on an incline burn more calories?

Yes. Walking uphill increases the MET value considerably. A 5% incline can raise MET by about 1.0–1.5 above the flat-ground value. This calculator uses flat-ground MET values; add roughly 10–20% for moderate inclines.

How many calories does a 10,000-step walk burn?

10,000 steps is roughly 7–8 km (4.5–5 miles) depending on stride length. A 70 kg person walking at a moderate pace for about 80–90 minutes burns approximately 330–390 calories over that distance.

Is walking enough exercise to lose weight?

Walking can contribute meaningfully to weight loss when combined with a modest caloric deficit. A 30-minute brisk walk 5 days per week burns roughly 1,200–1,500 extra calories for a 70 kg person — equivalent to about 0.17–0.2 kg of fat per week.

Sources & references

External references open in a new tab. We are independent and not affiliated with these organizations.

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Provided “as is” for general information only — results may be inaccurate, so verify before you rely on them. No warranty; use at your own risk.

Built and reviewed by HIFreeTools against the formula shown above and any authoritative references cited on this page. See our methodology and editorial standards.

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