SnapCalorieBurn — free MET-based calorie calculators
How many calories do you burn in a 45-minute walk? See personalized estimates by weight, pace, and terrain.
A 45-minute walk at moderate pace burns roughly 150–260 calories based on your body weight.
A 45-minute walk sits in a sweet spot between a quick daily walk and a dedicated workout. It's long enough to enter a sustained fat-burning zone where your body shifts toward using stored fat as fuel, yet short enough to fit into a lunch break or morning routine. You'll cover roughly 2.25 miles (3.6 km) and take 4,500–6,000 steps.
At 45 minutes, walking starts to compete with shorter, more intense activities. A 45-minute moderate walk burns comparable total calories to a 20-minute jog or a 25-minute moderate cycling session, while being significantly gentler on your joints.
If you're training for longer events or building endurance, 45-minute walks are excellent progression targets. They're also ideal for active recovery days between more intense workouts, promoting circulation and muscle repair without adding fatigue.
Direct answer: 45 minutes of walking burns an estimated 155–273 calories, depending on body weight (180 lb / 82 kg: ~215 kcal). Intensity assumed: Moderate (3 mph) (MET 3.5). This is an estimate, not a measurement.
| Body weight | Calories burned |
|---|---|
| 130 lb (59 kg) | ~155 cal |
| 155 lb (70 kg) | ~184 cal |
| 180 lb (82 kg) | ~215 cal |
| 205 lb (93 kg) | ~244 cal |
| 230 lb (104 kg) | ~273 cal |
Example: At MET 3.5, a 180 lb (82 kg) person doing 45 minutes of walking burns approximately 215 calories: 3.5 × 82 × 0.75 h ≈ 215 kcal.
There is no single universal calorie figure for this activity. At 180 lb (82 kg) and the same 45 minutes:
| Style / effort | MET | Estimate |
|---|---|---|
| Slow (under 2 mph) | 2 | ~123 cal |
| Brisk (3.5 mph) | 4.3 | ~264 cal |
| Fast (4 mph) | 5 | ~308 cal |
| Power walking (4.5+ mph) | 7 | ~431 cal |
An estimated 155–273 calories, depending on body weight. A 180 lb (82 kg) person burns about 215 kcal, calculated as MET 3.5 × 82 kg × 0.75 hours.
About 4.8 kcal per minute for a 180 lb (82 kg) person, or 2.6 kcal per kilogram of body weight across the whole session.
Because the MET formula scales directly with body mass: a 130 lb person burns about 155 kcal here versus 273 kcal for a 230 lb person — a 76% spread for the identical session.
From the 2024 Adult Compendium of Physical Activities, the reference database of measured MET intensities for physical activities. Every figure on this page uses that value in the formula Calories = MET × body weight (kg) × duration (hours).
They are estimates from population averages, not measurements. Individual results commonly land within about ±15% of the figure shown; actual intensity and pace, body composition and fitness, terrain and technique all shift the real number. The values are gross calories, so they include the energy you would have burned at rest.
Open the walking calorie calculator to enter your own weight, intensity and duration.