Key Takeaways

  • The Compendium provides 8 hill walking conditions with MET values from 3.8 (gentle ambling) to 8.8 (11-20% grade).[1]
  • A 30-minute hill walk at 6-10% grade (7.0 MET) estimates approximately 257 kcal for a 70 kg person.[3]
  • Carrying a 21-40 lb load on a 3-10% grade (7.5 MET) increases effort by approximately 97% compared to gentle ambling (3.8 MET).[5]
  • Grade (steepness) and load (backpack weight) are the two primary factors that increase caloric demand during hill walking.[6]
  • These are informational estimates for personal journaling. Terrain, altitude, and weather further influence actual expenditure.

Quick Climbing Hills Calorie Charts

Estimated kcal for 30 minutes. For informational reference only.

Grade / ConditionMET55 kg70 kg85 kg100 kg
Hiking / Ambling, No Load3.8110140170200
5-20% Grade, Very Slow Pace5144184223263
1-5% Grade, Moderate-Brisk Pace5.3153195237278
10-20 lb Load, 5-10% Grade6.5188239290341
6-10% Grade, Moderate-Brisk Pace7202257312368
21-40 lb Load, 3-10% Grade7.5217276335394
30% Grade, Slow Pace8.5245312379446
11-20% Grade, Slow-Moderate Pace8.8254323393462

How the Estimate Works

The calculator applies the standard MET formula with grade/load-specific MET values from the Compendium Walking section:[1]

Calories = (MET × 3.5 × Wt_kg × Duration_min) ÷ 200

Each grade/condition has a fixed MET directly from the Compendium (codes 17080-17195). The Compendium differentiates by grade percentage, walking pace, and load carried.

Grade / Condition Breakdown

Ambling / No Load (3.8 MET)

Gentle terrain with no pack at a leisurely pace. Entry-level hiking on flat or gently rolling trails (Compendium code 17080).[1]

1-5% Grade, Moderate-Brisk (5.3 MET)

Gentle slope at a brisk pace. Common for park trails and urban hill walks (code 17150).[1]

6-10% Grade, Moderate-Brisk (7.0 MET)

Moderate slope at a steady hiking pace. Standard mountain trail grade (code 17155).[1]

11-20% Grade, Slow-Moderate (8.8 MET)

Steep slope with sustained climbing effort. Common on mountain switchbacks and steep trail sections (code 17160).[1]

10-20 lb Load, 5-10% (6.5 MET)

Light backpack (daypack) on a moderate slope. Typical for day hikes with water and supplies (code 17190).[1]

21-40 lb Load, 3-10% (7.5 MET)

Heavy backpack on gentle-to-moderate slope. Multi-day backpacking with full gear (code 17195).[1]

Terrain Factor Guide

The Compendium MET values assume well-maintained trails. Actual effort may increase with:

  • Loose terrain: Gravel, sand, or scree increases energy cost by requiring more stabilization.
  • Altitude: Reduced oxygen availability at higher elevations increases perceived effort.
  • Weather: Wind resistance, rain, and extreme temperatures add to caloric demand.
  • Technical terrain: Scrambling, rock hopping, and stream crossings require additional muscular effort.

For these conditions, consider selecting the next higher grade/condition option as an approximation.

Frequently Asked Questions

Sources & References

  1. Walking - Compendium of Physical Activities. Compendium of Physical Activities. PAC Compendium (2024)
  2. MET values for physical activities. Ainsworth et al.. Medicine & Science in Sports & Exercise (2011)
  3. Exercise energy expenditure. PMC. PMC (2019)
  4. Mountain running energy expenditure. Edge Hill University. Research Paper (2018)
  5. Hill climbing biomechanics. PMC. PMC (2018)
  6. Mountain climbing activity research. ResearchGate. ResearchGate (2018)
  7. Hill walking and hiking research. ScienceDirect. ScienceDirect (2024)
  8. Mountaineering energy expenditure. PMC. PMC (2023)
Manish Kumar
Manish Kumar

Certified Personal Trainer & Sports Nutritionist

NASM-CPTCertified Sports Nutritionist10+ Years Experience500+ Clients Coached

NASM-certified fitness and nutrition coach with over 10 years of hands-on experience helping people build strength, lose fat, and live healthier lives. Specializing in gym-based workouts with a strong focus on lifting technique, biomechanics, and practical exercise science. Through FitLifeRegime, sharing the tools, tips, and insights that have worked for hundreds of clients — helping you start your own fitness journey with confidence and clarity.

Learn more about Manish
NASM Certified Personal Trainer Certificate

NASM Certified

Certified Personal Trainer & Sports Nutritionist from the National Academy of Sports Medicine

This tool is for informational and journaling purposes only.

I am NOT a doctor.