Ruck Calorie Calculator
Calories burned rucking with load, pace and grade.
Enter your values
Enter the body weight in lb.
Enter the pack weight in lb.
Enter the speed in mph.
Enter the grade in %.
Enter the duration in min.
Choose one of: Pavement, Dirt road, Light brush, Heavy brush / sand.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Calories burned
- 481 kcal
- Per minute
- 8.02 kcal/min
- Per hour
- 481 kcal/hr
- Distance covered
- 3.5 mi
- Load as % bodyweight
- 19.4%
- Power output
- 560 W
Quick answer
Rucking burns roughly 40–60% more calories than walking the same distance, scaling with pack weight, pace and terrain grade.
Pandolf load-carriage energy expenditure
At a glance
| What it does | Calories burned rucking with load, pace and grade. |
|---|---|
| Category | Fitness |
| Inputs needed | Body weight, Pack weight, Speed, Grade, Duration, Terrain |
| Main output | Calories burned |
| Formula | Pandolf load-carriage energy expenditure |
| Cost | Free — no sign-up, no download |
How to use the Ruck Calorie Calculator
- 1Enter your body weight and pack weight.
- 2Set your ruck pace and the average grade.
- 3Pick the terrain and enter the duration.
Inputs explained
- Body weight(lb)
- Enter the body weight in lb.
- Pack weight(lb)
- Enter the pack weight in lb.
- Speed(mph)
- Enter the speed in mph.
- Grade(%)
- Enter the grade in %.
- Duration(min)
- Enter the duration in min.
- Terrain
- Choose one of: Pavement, Dirt road, Light brush, Heavy brush / sand.
Worked example
Using the values the calculator loads with:
Inputs
- Body weight180 lb
- Pack weight35 lb
- Speed3.5 mph
- Grade0 %
- Duration60 min
- TerrainDirt road
Results
- Calories burned481 kcal
- Per minute8.02 kcal/min
- Per hour481 kcal/hr
- Distance covered3.5 mi
- Load as % bodyweight19.4%
- Power output560 W
Frequently asked questions
How many calories does rucking burn?
A 180 lb person with a 35 lb pack at 3.5 mph burns roughly 500–600 calories an hour on a dirt road.
How heavy should a ruck be?
Start at 10% of body weight and build toward 20–30% as your posture, feet and back adapt.
What do I need to enter into the Ruck Calorie Calculator?
Just 6 values: body weight, pack weight, speed, grade, duration, terrain. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Ruck Calorie Calculator work out the answer?
Rucking burns roughly 40–60% more calories than walking the same distance, scaling with pack weight, pace and terrain grade. It applies the formula Pandolf load-carriage energy expenditure and shows the working so you can check each step by hand.
Is the Ruck Calorie Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.