How Many Calories Does Walking Burn? The Science Explained

The short answer

For a 70 kg (154 lb) person walking at a moderate pace (about 3 mph) on flat ground, walking burns roughly 260 calories per hour — or about 4.3 calories per minute. That is the baseline most estimates start from. Walk faster, carry more weight, or head uphill, and the number climbs. Walk slowly or weigh less, and it drops.

Calories burned walking, by body weight

At a moderate pace on flat terrain, walking burns calories per hour roughly like this:

• 55 kg (121 lb): about 210 calories per hour
• 70 kg (154 lb): about 260 calories per hour
• 85 kg (187 lb): about 320 calories per hour
• 100 kg (220 lb): about 380 calories per hour

The relationship is almost perfectly linear: every extra kilogram of body weight adds about 3.7 calories per hour of moderate walking. This is why heavier walkers burn more — not because walking is harder for them, but because moving more mass takes more energy.

How pace changes the burn

Pace has a surprising effect. A slow stroll (2.5 mph) burns fewer calories per minute, but you also cover less distance. A power walk (4.5 mph) burns significantly more per minute and covers more ground. At 70 kg, the difference between a slow walk and a power walk is about 100 extra calories per hour — a big swing from just walking faster. Brisk walking (3.5 mph) is the sweet spot for most people: a noticeably higher burn without the joint stress of running.

How terrain changes the burn

Walking uphill or climbing stairs dramatically increases the calories burned per step. An incline can add 30–50% more calories compared to flat ground at the same pace. Stairs are even more demanding — climbing stairs burns roughly 2.5 times the calories of flat walking. This is why a hilly route feels like more work: it genuinely is, and the calorie math confirms it.

The walking calorie formula, explained

Every walking calorie estimate comes from the same equation: Calories = MET × 3.5 × body weight (kg) / 200 × minutes. MET (Metabolic Equivalent of Task) is a number from the Compendium of Physical Activities that represents how much energy an activity demands compared to resting. Moderate walking has a MET of about 3.5, brisk walking is 4.3, and power walking is 6.3. Plug in your weight and walking time, and you get a science-based calorie estimate — exactly what the calculator on this site does.

Walking vs other exercises

Walking burns fewer calories per minute than running, cycling uphill, or swimming — but it is the easiest exercise to sustain. A 30-minute run might burn 400 calories, but most people cannot run every day. A 60-minute walk burns 260, and most people can walk daily. Over a week, consistency wins: five one-hour walks burn 1,300 calories, while two 30-minute runs burn 800. For sustainable fat loss, walking is hard to beat.

Get your exact number

The figures above are averages. Your real calorie burn depends on your exact weight, height, pace, and terrain. The steps to calories calculator on this site personalizes the estimate in seconds — just enter your step count, weight, and pace, and it does the math for you.