Walking Calorie Calculator

Walking Calorie Calculator

Estimate how many calories you burn while walking based on your body weight, walking speed, slope, and duration. The calculator uses Margaria-derived metabolic equations for gentle grades and the ACSM walking equation for steeper inclines.

How Calories Are Calculated

For slopes between −5% and +5%, MET (metabolic equivalent) is derived from walking speed using cubic regression coefficients from Margaria's energy cost research. Calories equal MET × weight (kg) × hours. Estimated weight loss divides total calories by 7700 kcal per kg of body fat.

Effect of Slope

Walking uphill increases energy expenditure significantly. A 5% grade can raise calorie burn by 30–50% compared to flat ground at the same speed. Walking downhill burns fewer calories than level walking.