How Many Calories Does Walking 3 Miles Burn?

Last updated: June 2026

How Many Calories Does Walking 3 Miles Burn?

Walking 3 miles burns roughly 190 to 365 calories for most adults, with body weight being the primary variable. A 130-pound person walking at a moderate 3 mph pace burns around 200 calories; a 200-pound person doing the same walk burns closer to 315. Speed matters less per mile than most people expect — the difference between a slow stroll and a brisk walk is real but not dramatic over three miles.

Calories Burned Walking 3 Miles by Body Weight and Pace

The table below uses MET (Metabolic Equivalent of Task) values from the Compendium of Physical Activities and the formula Calories = MET × weight (kg) × time (hours). Time is calculated from the pace: 3 miles at 3.0 mph takes exactly 60 minutes; at 3.5 mph it takes about 51 minutes; at 4.0 mph it takes 45 minutes.

Notice that the calorie difference between 3.0 mph and 4.0 mph for the same distance is only about 5–7%. Walking faster increases the MET (intensity per minute), but you finish the three miles sooner, so the two effects nearly cancel out. The real benefit of a faster pace is covering more ground in the same time window.

Calories Burned Walking 3 Miles vs. Running 3 Miles

This is one of the most searched walking vs. running questions, and the answer surprises people. Running the same distance burns more calories per mile — roughly 100–130 calories per mile (155 lb person jogging at 5 mph) vs. 80–95 calories per mile walking. But the gap is smaller than most expect, especially compared to the calorie difference per minute.

Running 3 miles burns about 35–45% more calories than walking the same distance, and does it in significantly less time. For people who can’t run due to joint pain or fitness level, walking 3 miles is an excellent alternative — the calorie burn is real, the impact is minimal, and it can be sustained daily without recovery time.

How Many Calories Per Mile Walking?

A useful rule of thumb: most adults burn approximately 80–100 calories per mile walking at a moderate pace. Body weight determines where in that range you land:

• 120–130 lb: ~63–69 cal/mile
• 150–160 lb: ~80–86 cal/mile
• 180–190 lb: ~94–100 cal/mile
• 200–220 lb: ~106–117 cal/mile

These figures apply to flat ground at a brisk pace. Add incline and the per-mile burn rises significantly: a 5% grade increases calorie cost by roughly 50%, meaning a 155-pound person burns about 135 calories per mile walking at 5% incline versus about 85 on flat ground.

Walking 3 Miles a Day: Weight Loss Math

Walking 3 miles per day, five days per week, adds up to a meaningful calorie deficit over time. Here’s the weekly calorie burn at moderate pace:

These estimates assume no change in diet. One pound of fat requires a 3,500-calorie deficit, so at 5 days per week, walking alone produces roughly 0.3–0.5 lb of fat loss per week depending on body weight. Combined with a modest dietary reduction of 300–400 calories per day, weekly fat loss can reach 1–1.5 lb — without running a single step.

What Increases Calorie Burn During a 3-Mile Walk

Add incline

A 5% treadmill grade increases your calorie burn by about 50% for the same distance. Three miles at 5% incline burns roughly 370–530 calories (versus 190–365 on flat ground) — the equivalent of a slow jog.

Carry weight

A loaded backpack or weighted vest adds to the effective body weight your legs must move per step. Adding 10% of your body weight (e.g., a 15-lb pack for a 150-lb person) increases calorie burn by approximately 8–10% per mile.

Walk on varied terrain

Sand, grass, gravel, and trails require more stabilisation effort from your feet, ankles, and calves than flat pavement. Energy expenditure on soft or uneven ground is roughly 10–20% higher than on a paved surface at the same pace.