Weight, pace, and minutes in; calories out. This calculator uses the published MET values researchers use for walking, and it shows the math, because the number is more useful once you see how pace and body weight move it.
calories burned on this walk
About 95 calories per mile at your weight · 145 calories per 30 minutes at this pace
Flat-ground estimates. Hills, stairs, and a loaded backpack all burn more; the math for those lives below.
Exercise science measures activity in METs, multiples of your resting burn. Sitting quietly is 1 MET. Walking at an average pace is 3.5, which means it burns three and a half times your resting rate for as long as you keep it up.
Two things fall out of that formula worth noticing. Heavier people burn meaningfully more per mile, so the generic "100 calories per mile" line is only right for some bodies. And pace matters less than people hope; walking faster raises the burn per minute but shortens the minutes, so total distance does most of the work.
What the formula leaves out: hills, stairs, sand, and carried weight, all of which push the true number up. If your walks are hilly, treat the result as your floor.
Walking is the most underrated tool a busy adult has, for one reason: it doesn't need recovery, a gym, or a change of clothes. It stacks onto the day you already have. Researchers who study daily movement keep finding that this everyday activity separates lean from heavy adults more than gym sessions do.
Make it arithmetic, then make it automatic. A daily 30-minute walk at an average pace burns roughly the calories the widget just showed you, seven days a week, whether or not you trained. Attach it to something fixed: the school run, lunch, the first call of the day taken on foot.
Pair it with a deficit and the math compounds. Walking widens the calorie gap your diet creates. Set the gap with the weight loss calculator, and see where movement sits in your total burn with the TDEE calculator.
Walking keeps the engine running; it won't build the strength or structure that changes how you look and feel. That takes programming, and programming that survives a busy life takes a coach: custom programming, nutrition guidance, and weekly check-ins tailored to your schedule, your equipment, and your goals, with progress review, form feedback, and program adjustments every single week.