Last Updated on July 27, 2026 by Daniel Globe
Hiking combines outdoor recreation with meaningful aerobic exercise. How many calories you burn depends on your body weight, pace, trail grade, terrain, hike duration, and any load you carry. A gentle walk through rolling terrain can have a very different energy cost from a steep climb with a backpack, so one calorie number cannot describe every hike.
Quick Answer
A 160-pound adult may burn roughly 275 to 640 calories per hour while hiking, depending on pace, grade, terrain, and pack weight. Normal-paced hiking through fields and hills is about 385 calories per hour, while cross-country hiking is about 435. Treat all calorie numbers as estimates, not exact measurements.
Hiking mainly challenges the legs, hips, and core while raising your heart rate. Uneven ground, climbs, and pack carriage can increase the workload further. Regular physical activity also supports cardiovascular health, bone health, sleep, and healthy weight management, according to the Centers for Disease Control and Prevention.
Key Takeaways
- Body weight, pace, incline, terrain, duration, and backpack load all affect calories burned while hiking.
- The 2024 Compendium lists normal-paced hiking through fields and hills at 5.3 METs and cross-country hiking at 6.0 METs.
- A useful estimate is: calories burned = MET value × body weight in kilograms × hours.
- Hills and a brisk sustainable pace are safer ways to raise hiking intensity than adding unnecessary pack weight.
- Fitness watches and calorie calculators provide estimates, so use their numbers as trends rather than exact measurements.
At a Glance
| Time Required | About 2–3 minutes to estimate your calorie burn |
| Difficulty | Easy |
| Tools Needed | Your body weight, hike duration, and an appropriate MET value |
| Cost | $0 |
How Many Calories Does Hiking Burn Per Hour?
The most useful way to estimate hiking calories is to match the hike to an activity intensity rather than calling every trail “easy,” “moderate,” or “difficult.” The 2024 Compendium of Physical Activities assigns different MET values to walking, hiking, hill climbing, and backpacking based on their measured or estimated energy cost.
The table below shows approximate total calories per hour for a 160-pound (72.6 kg) adult. Your number will be higher or lower if your body weight, speed, terrain, or load differs.
| Hiking Scenario | Approx. Calories/Hour at 160 lb |
| Slow hiking or ambling through fields and hillsides — 3.8 METs | About 275 calories |
| Normal-paced hiking through fields and hillsides — 5.3 METs | About 385 calories |
| Cross-country hiking — 6.0 METs | About 435 calories |
| Hill climbing, 6–10% grade, moderate-to-brisk pace — 7.0 METs | About 510 calories |
| Backpacking or hiking with a daypack — 7.8 METs | About 565 calories |
| Hill climbing, 11–20% grade, slow-to-moderate pace — 8.8 METs | About 640 calories |
Note: These numbers are estimates, not measurements of your individual metabolism. The Compendium itself notes that standard MET values were designed to describe activity energy costs across populations and do not precisely predict every individual’s calorie expenditure.
How to Calculate Calorie Burn While Hiking
A practical calorie estimate uses a MET, or Metabolic Equivalent of Task. The Compendium defines 1 MET as approximately 1 kcal per kilogram of body weight per hour. Its unit-conversion guidance supports this simple formula:
Calories burned ≈ MET value × body weight in kilograms × duration in hours.
For example, suppose a 70 kg person hikes cross-country at roughly 6 METs for two hours:
6 × 70 × 2 = approximately 840 calories.
That gives a useful estimate, but it is not a laboratory measurement. Age, body composition, fitness, actual walking speed, rest stops, terrain, and individual metabolism can all shift the result.
Total Calories vs. Active Calories
The basic MET calculation estimates the total or gross energy used during the activity, including energy your body would have used at rest. Some watches instead emphasize “active calories,” which try to remove that resting component. That is one reason two apps can report different numbers for the same hike.
For a rough active-calorie estimate, you may see the resting 1 MET subtracted before calculation. Even then, the result remains an estimate rather than an exact measurement.
Pro Tip: Use the same watch or calculation method from hike to hike. The trend is often more useful than comparing calorie numbers from different apps that may use different algorithms.
Factors That Affect Calorie Burn While Hiking
Several variables can change hiking energy expenditure. The largest practical factors are body weight, pace, incline, terrain, hike duration, and any load you carry.
Body Weight
At the same MET intensity and duration, a heavier person generally uses more total energy because more mass is being moved. For example, the same 6-MET one-hour hike produces a higher estimated calorie total for a 200-pound hiker than for a 150-pound hiker.
Pace and Effort
Walking faster usually raises energy expenditure. A brisk but sustainable hiking pace can therefore burn more calories per hour than slow ambling on similar terrain.
Incline and Elevation Gain
Climbing against gravity substantially raises the workload. The 2024 Compendium lists hill walking at 5.3 METs for a 1–5% grade at a moderate-to-brisk pace and 7.0 METs for a 6–10% grade at a similar pace. Some steeper climbing conditions reach 8.8 METs or more.
Trail Surface
Rocks, roots, sand, mud, and uneven surfaces can alter pace and require more balance and stabilization than a smooth path. However, there is no universal calorie “bonus” that can accurately be assigned to every rough trail.
Backpack Weight
Extra carried mass increases the work required to walk. Research on backpack load carriage found that metabolic energy expenditure rose approximately linearly as load increased under controlled walking conditions. The exact increase on a real hike depends on the load, speed, grade, terrain, and the person carrying it.
Altitude and Weather
High altitude changes breathing and exercise performance as oxygen availability falls, but altitude should not be treated as a simple calorie multiplier. The CDC’s high-altitude guidance recommends gradual acclimatization and lighter exercise during the initial period at altitude.
Likewise, hot weather increases dehydration and heat-illness risk. The CDC advises people exercising in hot conditions to pace themselves, drink water, and reduce exposure during the hottest part of the day.
Tips for Maximizing Calorie Burn on Hiking Trails
You can increase hiking intensity without turning a safe outing into a punishment session. The best approach is to change variables you already control: terrain, pace, duration, and the amount of climbing.
Choose Routes With More Climbing
Steady uphill sections raise the workload quickly. Rolling trails can also create repeated periods of harder climbing followed by easier recovery.
Maintain a Brisk, Sustainable Pace
Walk fast enough to raise your breathing rate while staying in control. On technical ground, footing should always take priority over speed.
Use Controlled Intervals
Instead of sprinting on a rocky trail, alternate a few minutes of comfortable hiking with shorter periods of faster uphill walking on wide, stable sections. This raises intensity while keeping movement controlled.
Increase Duration Gradually
A longer hike can produce a larger total energy expenditure even when the hourly intensity stays moderate. Build distance and elevation gradually so your feet, muscles, and joints have time to adapt.
Warning: Do not add unnecessary backpack weight, choose dangerous terrain, hike in extreme heat, or sprint technical trails simply to increase a calorie number. Safety, hydration, footing, and your ability level matter more than maximizing energy expenditure.
The Best Types of Terrain for Calorie Burn While Hiking
Steep hills and mountainous routes generally require more energy per minute than flat walking because your muscles must repeatedly lift your body against gravity. A moderate-to-brisk climb on a 6–10% grade is listed at 7.0 METs in the 2024 Compendium, compared with 5.3 METs for normal-paced hiking across fields and hillsides.
Trails with frequent elevation changes can also create a natural interval workout. Your effort rises on climbs and falls during easier or downhill sections, allowing you to accumulate periods of vigorous activity without maintaining the same intensity for the entire hike.
Rocky and uneven trails challenge balance and stabilizing muscles, but rougher is not automatically better. Technical surfaces often force you to slow down, and the safest route may not be the route with the greatest theoretical calorie burn.
Natural obstacles such as rocks, logs, and stream crossings can make hiking more demanding, but they should be crossed carefully rather than treated as workout equipment. Choose terrain that matches your experience and current conditions.
The Role of Weight and Pack Size in Calorie Burn While Hiking
The Effect of Backpack Weight on Calorie Expenditure
Carrying additional weight increases the amount of mass your body must move and stabilize. Laboratory research confirms that metabolic cost increases as backpack load rises, but there is no reliable rule stating that every extra pound always burns a fixed number of calories per mile.
The effect changes with walking speed, grade, terrain, pack design, load placement, and your own body size. That makes a personalized estimate more useful than a universal per-pound formula.
Maximizing Calorie Burn Through Weight Addition
A heavier pack can increase energy expenditure, but adding weight solely to burn more calories is usually unnecessary. Hills, a brisk pace, longer duration, and controlled intervals can increase the training demand without placing extra load on your back, hips, knees, and feet.
If you are already carrying water, food, safety equipment, or overnight gear, that necessary load naturally increases the work of the hike. Purposeful loaded walking or rucking should be approached as its own form of training rather than as a shortcut for increasing a calorie estimate.
Safe Weight Limits to Avoid Injury or Fatigue
There is no single evidence-based backpack percentage that is safe for every hiker. Fitness, age, experience, terrain, pack fit, trip length, previous injuries, and the way the load is distributed all matter.
Use the lightest practical load for your trip, choose a pack that fits and supports the load well, and increase carried weight gradually if you are deliberately training with a pack. Reduce the load or stop if you develop significant pain, numbness, loss of balance, or unusual fatigue.
Hiking vs. Walking, Running, and Other Exercise
Hiking often sits between ordinary walking and running in exercise intensity. For comparison, the 2024 Compendium lists brisk level walking at 3.5–3.9 mph at 4.8 METs, cross-country hiking at 6.0 METs, and running at about 5.0–5.2 mph at 8.5 METs.
Running therefore often burns more calories per hour at the same body weight, but hiking can be sustained for long periods and allows intensity to change naturally with the terrain. A long hike can still produce substantial total energy expenditure even when its hourly rate is lower than running.
Hiking is also primarily an aerobic activity that strongly involves the legs and trunk. Carrying gear or using trekking poles can recruit additional muscles, but hiking should not automatically be considered a replacement for a complete muscle-strengthening program.
Hiking and Weight Management
Hiking can contribute to weight management because it adds physical activity and energy expenditure to your day. However, the number shown on a watch or calorie calculator should not be treated as a guaranteed calorie deficit.
Body weight changes are affected by overall food intake, daily activity, metabolism, sleep, and many other factors. A hike is valuable even when its calorie estimate is imperfect because regular physical activity provides benefits beyond weight loss.
Safety Considerations for Calorie Burn While Hiking
Calorie burn should never be the main priority when conditions become unsafe. Choose a trail that fits your ability, check weather and trail alerts, and be willing to turn around if the route is harder or conditions are worse than expected.
The National Park Service’s Hike Smart guidance recommends leaving a trip plan, checking weather and park alerts, carrying the Ten Essentials, bringing food and water, wearing suitable footwear, tracking time and distance, and knowing your limits.
Wear footwear with suitable grip for the surface, use clothing appropriate for changing weather, and carry enough water and food for the trip. For backcountry hikes, navigation, illumination, first-aid supplies, emergency shelter, sun protection, insulation, and other Ten Essentials can become important if a simple day hike turns into an emergency.
If you are hiking at an altitude substantially higher than you are accustomed to, give yourself time to acclimatize. Headache, dizziness, unusual shortness of breath, confusion, or nausea at altitude should not be ignored.
People with chronic health conditions or those who have been inactive and plan to begin vigorous exercise should discuss an appropriate activity level with a healthcare professional.
Note: Fitness trackers can be useful for comparing your own hikes, but their calorie estimates should not override warning signs such as dizziness, unusual weakness, chest discomfort, severe shortness of breath, or heat-illness symptoms.
Conclusion
Hiking is an effective way to combine physical activity with time outdoors, and its calorie demand can range widely. Body weight, pace, climbing, terrain, duration, and carried load all matter. For a 160-pound adult, normal-paced hiking may be around 385 calories per hour, while cross-country hiking may be around 435 calories per hour and sustained hill climbing can be considerably higher.
For the most useful estimate, choose a MET value that matches the actual hike and multiply it by your body weight in kilograms and hike duration. Then treat the result as a guide rather than an exact measurement. The best hiking workout is one that challenges you while still leaving enough attention and energy for safe footing, hydration, navigation, and changing conditions.
If you’re looking to stay comfortable while hiking or traveling, you may also be interested in practical clothing with secure storage. Check out this article on the best travel pants with hidden pockets for more information on staying organized while you are active.
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Frequently Asked Questions
What factors affect the number of calories burned while hiking?
The main factors are body weight, hiking speed, duration, trail grade, terrain, elevation gain, and backpack load. A heavier person or a hiker climbing steep terrain generally uses more energy than a lighter person walking slowly on an easier route.
How can I calculate the number of calories burned while hiking?
Choose a MET value that closely matches your hike, convert your weight to kilograms, and use: calories ≈ MET × kilograms × hours. For example, a 70 kg person hiking at 6 METs for two hours would have an estimated total expenditure of about 840 calories.
What is the average number of calories burned while hiking?
There is no single average that fits everyone. For a 160-pound adult, estimates based on 2024 Compendium MET values range from about 275 calories per hour for slow hiking to roughly 435 for cross-country hiking and more than 600 during some sustained steep climbs.
How can I safely increase calorie burn while hiking?
Choose routes with more climbing, maintain a brisk but controlled pace, gradually extend your hike, or use faster walking intervals on stable terrain. Avoid adding unnecessary pack weight or moving too fast over technical ground simply to increase your calorie number.
Are smartwatch hiking calorie estimates accurate?
They are useful estimates, not exact measurements. Different devices use different combinations of body data, heart rate, speed, GPS, elevation, and proprietary algorithms. Use one device consistently to compare trends rather than assuming every displayed calorie is precise.
Does carrying a heavier backpack burn more calories?
Usually, yes. Research shows that carrying additional load increases walking energy expenditure. However, the size of the increase varies with the pack weight, body weight, pace, terrain, incline, and pack setup, so there is no universal number of extra calories burned for each additional pound.
Sources
- 2024 Compendium of Physical Activities — Walking — MET values for hiking, backpacking, hill climbing, downhill walking, and brisk walking.
- Compendium of Physical Activities — Unit Conversions — MET definitions and calorie-estimation formulas.
- Huang & Kuo, Journal of Experimental Biology — metabolic and mechanical effects of carrying backpack loads while walking.
- U.S. National Park Service — Hike Smart — trail planning, equipment, food, water, footwear, and hiking safety guidance.
- CDC Yellow Book — High-Altitude Travel and Altitude Illness — altitude physiology, acclimatization, and safety guidance.
- CDC — Health Benefits of Physical Activity for Adults — current evidence on cardiovascular, weight, bone, sleep, and other benefits of physical activity.
