How Many Calories Does Walking 3 Miles Burn?

Last updated: October 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 65% (based on the ACSM walking equation at 3.5 mph), meaning a 155-pound person burns about 140 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 roughly 65% for the same distance. Three miles at 5% incline burns roughly 315–600 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. A weighted vest distributes that load more evenly than a backpack for most walkers.

Walk on varied terrain

Sand, grass, gravel, and trails require more stabilisation effort from your feet, ankles, and calves than flat pavement. Grass and gravel add a little, but soft sand can roughly double the energy cost compared with a paved surface at the same pace.