How calories are calculated
The calculator uses the American College of Sports Medicine (ACSM) walking equation: oxygen use (ml/kg/min) = 0.1 × speed (m/min) + 1.8 × speed × grade + 3.5. One liter of oxygen burns about 5 kcal.
It shows two numbers: total calories, which include what you would burn sitting still, and extra calories from walking, which is what the walk adds on top.
Walking pad calories per hour
These examples use the same equation, flat, for one hour. Heavier people burn more at the same speed.
| Speed | 60 kg (132 lb) | 80 kg (176 lb) | 100 kg (220 lb) |
|---|---|---|---|
| 1.5 mph (2.4 km/h) | 135 kcal | 181 kcal | 226 kcal |
| 2 mph (3.2 km/h) | 160 kcal | 213 kcal | 266 kcal |
| 2.5 mph (4 km/h) | 184 kcal | 245 kcal | 306 kcal |
| 3 mph (4.8 km/h) | 208 kcal | 277 kcal | 346 kcal |
| 3.5 mph (5.6 km/h) | 232 kcal | 309 kcal | 387 kcal |
Walking pad vs sitting
Compared with sitting, slow walking at 2 mph more than doubles your energy use. Two hours a day at that pace adds about 200-320 extra kcal for people weighing 60-100 kg, similar to a 25-30 minute run.
Consistency is the real advantage: an hour or two every workday adds up to more than an occasional workout.
Getting an accurate number
Do not hold the desk or handrails, which lowers the effort. Check the pad's speed with a timer over a known distance if you can, because cheap pads often read fast.
The ACSM equation is most accurate between about 1.9 and 3.7 mph (3-6 km/h). Most walking pads are used right in that range.
Can a walking pad help you lose weight?
Yes, slowly and steadily. Take an 80 kg (176 lb) person walking at 2 mph (3.2 km/h). Each hour adds about 128 kcal on top of what they would burn sitting at the same desk.
One hour every workday adds about 640 kcal a week. If what you eat stays the same, that is roughly 0.08 kg a week, or about 4 kg (9 lb) over a year. Two hours a day doubles it.
The catch is appetite: some people eat a little more when they move more. Track your weight trend for a month to see what the pad actually does for you.
Steps and distance on a walking pad
Slow walking means short steps, so a walking pad hour gives fewer steps than the same time walking outside. The calculator estimates your step length from your height.
| Speed | Distance | Steps (approx.) |
|---|---|---|
| 2 mph (3.2 km/h) | 3.2 km (2 miles) | 4,400 |
| 2.5 mph (4 km/h) | 4 km (2.5 miles) | 5,500 |
How to burn more on a walking pad
- Walk longer before you walk faster. Time on the pad adds up more than a small speed increase, and slow speeds are easier to work at.
- Raise the speed in short blocks, for example 10 minutes faster every half hour, if you can still type and talk comfortably.
- Use incline only if your pad has it. Most under-desk pads are flat, which the calculator assumes by default.
- A weighted vest raises the cost of every step. Our rucking calorie calculator shows by how much.
- Stand tall and let your arms move. Leaning on the desk takes weight off your legs and lowers the burn.