Burn 100 calories walking

A 300 lb person walking at 2.0 mph burns 100 calories in about 15 min. Here's the time for your weight and speed.

Minutes of flat treadmill walking to burn 100 kcal
Weight	1.5 mph	2.0 mph	2.5 mph	3.0 mph	3.5 mph
150 lb	37 min	30 min	28 min	24 min	20 min
200 lb	28 min	23 min	21 min	18 min	15 min
250 lb	22 min	18 min	17 min	15 min	12 min
300 lb	19 min	15 min	14 min	12 min	10 min
350 lb	16 min	13 min	12 min	11 min	9 min
400 lb	14 min	12 min	11 min	9 min	8 min
450 lb	13 min	10 min	10 min	8 min	7 min
500 lb	11 min	9 min	9 min	8 min	6 min

Split it up if that's long: two or three shorter walks across the day add up the same. Holding the rails, incline and fitness all change the real number, so treat this as a ballpark.

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Last reviewed October 30, 2026 · Sources · General information, not medical advice.