What speed to ruck?
Many train 3–4 mph on flat paths.
Rucking Calorie Calculator
Calorie estimate for walking with a loaded pack—popular for military prep and hiking fitness.
Pack load and pace
Enter minutes, body weight, pack weight (lb), and average speed (mph).
About this calculator
How to use Rucking Calorie Calculator, plus the formulas and logic behind the results.
Tool description
Rucking adds load to walking, raising energy cost. Pace is usually slower than unloaded walking due to weight.
How to use
- Weigh pack with water and gear.
- Enter average mph over the ruck.
- Include body weight separately.
- Calculate and log long rucks weekly.
Formulas & reference
Base MET from walking speedLoad factor scales with pack ÷ body weightCalories = MET × total mass(kg) × hours
Starting loads
- Beginners: 10–20 lb
- Intermediate: 20–35 lb
- Military prep: event-specific
- Increase load gradually to protect joints
Calculation logic
Walking MET from mph, adjusted upward for pack weight relative to body mass, applied to total carried mass.
Hills, soft ground, and stops are not modeled—real rucks vary.
Rucking Calorie Calculator FAQ
Common questions about this calculator and how to use the results.
Running with pack?
This model is for walking speeds; running loads need different care.
Plate carrier vs backpack?
Enter total carried weight either way.
Zero pack?
Works as a walking calorie estimate at entered speed.
Hills?
Expect higher real burn—pace may drop on climbs.
Footwear?
Sturdy boots reduce injury risk; calories similar at same speed/load.