Calories Burned Walking 4.5 MPH at 12% Incline for 20 Minutes

283 calories
estimated for a 150 lb person
Pace 13:20/mi
METs 11.9
Duration 20 min

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Walking 4.5 mph at 12% incline for 20 minutes burns between 227 and 472 calories depending on your body weight. These estimates use the ACSM metabolic walking equation—the same formula used in clinical exercise physiology and the Boring Cardio app.

Calories by Body Weight

Body Weight Total Calories Cal/Min
120 lbs (54 kg) 227 11.3
130 lbs (59 kg) 246 12.3
140 lbs (64 kg) 264 13.2
150 lbs (68 kg) 283 14.2
160 lbs (73 kg) 302 15.1
170 lbs (77 kg) 321 16.1
180 lbs (82 kg) 340 17.0
190 lbs (86 kg) 359 17.9
200 lbs (91 kg) 378 18.9
220 lbs (100 kg) 416 20.8
250 lbs (113 kg) 472 23.6

Calories by Duration at 4.5 MPH, 12% Incline

Duration 150 lbs 200 lbs
15 min 212 283
20 min 283 378
30 min 425 567
45 min 637 850
60 min 850 1133

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How we calculate this These estimates use the ACSM Walking Metabolic Equation: VO₂ = 3.5 + (0.1 × S) + (1.8 × S × G) where S is speed in m/min and G is grade as a decimal. VO₂ is converted to calories using the standard 5.0 kcal per liter of oxygen consumed. This is the same equation used by exercise physiologists and certified personal trainers. Individual results vary based on fitness level, walking efficiency, and environmental conditions.
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