Calorie Calculator
Calculate daily calorie needs based on activity level, terrain and pack weight.
Your weight without pack
Total packed weight including water
Total horizontal distance for the day
Cumulative elevation gain
Energy cost varies with ground conditions
How We Calculate This
This calculator estimates calorie expenditure using a simplified version of the Pandolf equation for loaded walking.
Calories = (Body + Pack weight) × Distance × Terrain factor + Ascent calories
Terrain factors: Path (3.5), Trail (4.2), Rough (5.5), Snow (6.5) cal/kg/km
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify conditions and use proper safety equipment outdoors.