Last Updated on July 27, 2026 by Daniel Globe
Hiking can burn a meaningful number of calories while building cardiovascular fitness and challenging the legs, hips, and core. But there is no single calorie number for every mile. Your body weight, hiking speed, trail grade, footing, elevation gain, pack weight, and the time needed to cover that mile all affect the result. Hiking can also support weight management when it is part of an overall calorie deficit and a sustainable activity routine.
Quick Answer
A 150-pound person may burn about 150 calories hiking one moderately hilly mile at roughly 2.5 mph. Under the same assumptions, a 120-pound hiker may burn about 120 calories and a 200-pound hiker about 200. Steeper grades, rough terrain, heavier packs, and longer time per mile can raise the total.
Key Takeaways
- Calories burned hiking a mile depend mainly on body weight, trail intensity, grade, terrain, pack load, and time.
- A useful one-mile estimate for moderate, hilly hiking is about 120 calories at 120 pounds, 150 calories at 150 pounds, and 200 calories at 200 pounds when a mile takes about 24 minutes.
- Uphill hiking usually costs considerably more energy than easy level walking.
- A backpack increases workload, but there is no reliable rule that every 10 or 20 pounds increases calorie burn by a fixed percentage.
- Smartwatch and fitness-app calorie numbers are estimates. They are more useful for tracking trends than measuring exact energy expenditure.
At a Glance
| Time Required | About 1 minute to estimate calories once you know your weight and hiking time |
| Difficulty | Easy |
| Tools Needed | Body weight, hiking duration, and an appropriate MET value; GPS elevation data can improve context |
| Cost | Free |
How Many Calories Do You Burn Hiking One Mile?
For a practical starting point, consider a normal-paced hike through fields and hills. The 2024 Adult Compendium of Physical Activities assigns that activity a value of 5.3 METs. If you cover one mile at about 2.5 mph, the mile takes roughly 24 minutes.
Using the standard MET calorie equation, the following are approximate gross calorie estimates for that one mile:
| Body Weight | Estimated Calories for 1 Mile |
| 120 lb | About 120 calories |
| 150 lb | About 150 calories |
| 180 lb | About 180 calories |
| 200 lb | About 200 calories |
| 220 lb | About 220 calories |
These are examples, not guarantees. An easy, smooth mile can cost less energy. A steep mountain mile that takes much longer can cost substantially more.
Note: These figures represent estimated gross energy expenditure during the activity. A fitness watch may show a lower number if it reports only “active calories” after subtracting some of the energy your body would have used at rest.
For reference, the CDC estimates that a 154-pound person uses about 370 calories per hour during hiking, while noting that heavier people generally use more energy and lighter people use less.
Factors Affecting Calories Burned While Hiking
The same one-mile trail can produce different calorie estimates for different hikers. The most important variables are body weight, trail intensity, time, grade, terrain, and carried load.
Body Weight
Moving a larger body mass generally requires more energy under the same conditions. That is why two people hiking the same trail at the same speed can receive different calorie estimates.
Hiking Speed and Time
Faster hiking usually increases energy use per minute. However, calories per mile are more complicated because a faster hiker also finishes the mile sooner. This is one reason a universal “calories per mile” figure can be misleading without a pace or duration assumption.
Incline and Elevation Gain
Uphill travel can raise energy demand sharply. The 2024 Compendium lists 5.3 METs for moderate-to-brisk hill climbing at a 1% to 5% grade, 7.0 METs at a 6% to 10% grade, and 8.8 METs for slower travel on an 11% to 20% grade. Very steep climbing can be considerably higher.
Terrain
A maintained dirt trail usually requires less stabilizing effort than loose rock, mud, sand, snow, or highly uneven ground. Rough terrain can also slow you down, meaning you spend more time completing each mile.
Pack Weight
Carrying gear increases the work your body performs, particularly on climbs. However, there is no dependable rule that a 20-pound backpack always increases calorie burn by 10% or 20%. The Compendium assigns different energy costs according to pack weight, speed, and grade, showing why load should not be treated as a simple percentage multiplier.
Fitness and Individual Differences
Age, movement efficiency, fitness, stride, body composition, and individual metabolism can all influence real-world energy expenditure. Two hikers with the same scale weight may therefore produce different laboratory measurements even when their calculated estimates are identical.
How to Calculate Calories Burned While Hiking
A practical method is to combine a MET value with your body weight and time. MET stands for metabolic equivalent of task. The 2024 Adult Compendium of Physical Activities provides standardized MET values for many forms of walking, hiking, hill climbing, and load carriage.
Common hiking-related examples include:
- 3.8 METs: slow hiking or ambling through fields and hillsides without a load.
- 5.3 METs: normal-paced hiking or walking through fields and hillsides without a load.
- 6.0 METs: cross-country hiking.
- 7.0 METs: general backpacking.
- 7.8 METs: backpacking or hiking with a daypack in the listed Compendium activity.
- 7.0 METs: moderate-to-brisk hill climbing at a 6% to 10% grade without a load.
MET Calorie Formula
Calories = MET × 3.5 × body weight in kilograms ÷ 200 × minutes
To convert pounds to kilograms, divide pounds by about 2.205.
Example: 150-Pound Hiker
A 150-pound person weighs about 68 kilograms. Suppose the person hikes for 24 minutes at an intensity of 5.3 METs:
5.3 × 3.5 × 68 ÷ 200 × 24 ≈ 151 calories
If those 24 minutes covered one mile, the estimate would be about 150 calories per mile.
Pro Tip: For a better estimate, use the actual moving time from your GPS recording rather than assuming a standard hiking speed. Then choose the Compendium activity that most closely matches your terrain, grade, and pack situation.
How Accurate Are Fitness Trackers?
Fitness watches and phone apps can be convenient because they combine information such as heart rate, movement, distance, and your profile data. But they do not directly measure how many calories your body burns.
A systematic review of commercial wearable devices found that energy-expenditure estimates were much less reliable than measurements such as steps. Another systematic review likewise found poor accuracy for energy expenditure across tested wrist-worn brands.
Use a watch as a consistent tracking tool rather than treating a displayed number such as “643 calories” as a laboratory measurement.
Tips for Maximizing Calorie Burn While Hiking
| Strategy | What It Changes |
| Choose challenging terrain | Hills and rough footing can increase muscular and cardiovascular demand. |
| Carry a backpack | Load increases the work of moving, especially uphill, but should be based on what the trip requires and what you can carry safely. |
| Use trekking poles | Poles can involve the upper body and help with balance, but they do not guarantee a fixed increase in calorie burn. |
| Take shorter, quicker steps | A sustainable increase in pace can raise calories burned per minute. |
| Include uphill sections | Increasing grade is one of the clearest ways to increase hiking intensity. |
Interval-style hiking can also increase intensity without turning the entire outing into a race. For example, walk briskly on a safe uphill section, recover at an easier pace, and repeat according to your fitness level.
For most recreational hikers, increasing pace, distance, or controlled elevation gain is a better strategy than adding unnecessary weight solely to burn more calories.
Warning: Do not choose a trail beyond your ability or load your pack with unnecessary weight simply to raise a calorie number. More load and harder terrain also increase fatigue and can affect balance, joints, feet, and your ability to finish the hike safely.
The Importance of Terrain and Incline in Calorie Burn
Trail grade has a major effect on hiking intensity because your muscles must lift your body against gravity. A sustained climb therefore tends to require more energy than level walking at a similar speed.
Uneven terrain adds another challenge. Rock, roots, mud, loose gravel, sand, and snow may force you to shorten your stride, stabilize your body, and spend more time covering the same horizontal distance.
This also explains why distance alone is an incomplete measure. A three-mile mountain hike with substantial elevation gain can demand much more effort than a three-mile walk on a smooth, flat path.
Why Downhill Miles Still Count
Descending usually costs less metabolic energy than climbing the same grade, but it is not effortless. Your leg muscles must repeatedly control your body as you lower yourself, and technical descents may be slow and demanding. A round-trip mountain hike therefore cannot be estimated accurately by applying the uphill rate to every mile.
Comparing Hiking to Other Forms of Exercise for Calorie Burn
Running can use more energy per minute than moderate hiking because the intensity is usually higher. Hiking, however, can be sustained for long periods and can range from moderate to vigorous intensity depending on grade, pace, and load.
Cycling also spans a wide range of intensities. Direct comparisons therefore work only when body weight, intensity, and duration are specified.
Hiking has a practical advantage for people who enjoy outdoor exercise: terrain and elevation naturally change the workload without requiring a gym machine. It also provides time in natural settings. Recent research on nature-based interventions suggests potential benefits for mood, anxiety, stress, and other measures of well-being, although results vary by intervention and study design.
The Role of Weight and Pack Load in Calorie Burn While Hiking
Body weight is built directly into common calorie-estimation formulas, so a heavier person will generally receive a higher calculated energy expenditure for the same MET level and duration.
Pack weight also matters, but its effect depends on the hiking conditions. The 2024 Compendium, for example, lists different MET values for walking or climbing with different loads and grades. This is more realistic than saying every 20-pound pack raises calorie burn by the same percentage.
If you need to carry gear, distribute the load securely and use a properly fitted pack. Increase load gradually when training for backpacking rather than making a sudden jump in pack weight.
Note: Extra weight is not required for a productive hike. Distance, hills, and a sustainable pace can increase training demand without deliberately making your backpack heavier.
Calories per Mile vs. Calories per Hour
These two measurements answer different questions.
- Calories per hour describe how quickly you are expending energy.
- Calories per mile describe the estimated energy used to cover a fixed distance.
Suppose one hiker completes a mile in 20 minutes and another takes 35 minutes. The first person may be working at a higher intensity, while the second spends substantially more time moving. Body weight and terrain further change the comparison.
That is why an hourly estimate such as the CDC’s example of about 370 calories per hour for a 154-pound person cannot automatically be called “370 calories per mile.” You must also know how long the mile takes.
Can Hiking Help With Weight Loss?
Yes, hiking can support weight management because physical activity increases the amount of energy your body uses. However, exercise does not guarantee weight loss by itself.
The Centers for Disease Control and Prevention explains that weight loss occurs when energy use and reduced calorie intake create an overall calorie deficit. The CDC also notes that physical activity is important for maintaining weight loss.
A practical approach is to use hiking because you enjoy it and can repeat it consistently rather than trying to maximize the calorie number from every outing.
For general health, current CDC physical-activity guidance says adults should aim for at least 150 minutes of moderate-intensity aerobic activity each week, or 75 minutes of vigorous activity, plus muscle-strengthening activity on at least two days.
Safety Considerations for Hiking to Burn Calories
Calorie burn should never take priority over getting back safely. Choose a route that fits your current fitness and hiking experience, and build distance, climbing, and pack load gradually.
The National Park Service Hike Smart guidance recommends checking trail conditions and weather, selecting a route appropriate for your group’s abilities, leaving a trip plan, carrying essential supplies, bringing adequate food and water, and paying attention to your limits while hiking.
Weather matters because heat, cold, storms, and rapid changes in conditions can turn an ordinary workout into a safety problem. At altitude, allow time to acclimate and avoid treating a harder breathing rate as a reason to push for a higher calorie total.
If you have a chronic health condition, have been inactive, or plan to move suddenly into vigorous exercise, follow your healthcare professional’s advice about an appropriate activity level.
If you’re looking to stay active while traveling, hiking can combine sightseeing with physical activity. Seasonal weather, daylight, trail conditions, and local hazards should still shape your plans. For example, this guide to the best time to travel to Iceland can help with seasonal planning before choosing hiking routes there.
Frequently Asked Questions
What factors affect the number of calories burned while hiking a mile?
The main factors are body weight, hiking duration, pace, incline, elevation gain, terrain, and pack load. Fitness, movement efficiency, and individual metabolism also cause real-world differences.
How many calories does the average person burn while hiking a mile?
There is no single average that fits every trail. Using a 5.3-MET moderate, hilly hike and a pace of about 2.5 mph, a 150-pound person would burn roughly 150 calories in one mile. A 120-pound person would be around 120 calories, while a 200-pound person would be around 200 under the same assumptions.
Does hiking uphill burn more calories than hiking on flat terrain?
Usually, yes. Climbing requires your muscles to raise your body against gravity. The 2024 Adult Compendium assigns higher MET values as hill grade and effort increase, although the exact difference depends on speed, grade, body weight, and load.
Does hiking faster burn more calories?
A faster pace generally increases calories burned per minute. It does not always increase calories per mile by the same amount because you also finish the mile sooner. Duration and intensity need to be considered together.
How can I calculate the number of calories I burn while hiking a mile?
Choose a MET value that matches your hike, convert your body weight to kilograms, and use: MET × 3.5 × weight in kilograms ÷ 200 × minutes. If the time represents exactly one mile, the result is your estimated calories for that mile.
Does carrying a backpack burn more calories while hiking?
Generally, yes, because your body must move additional mass. However, there is no universal percentage increase. Pack weight, body weight, terrain, grade, speed, and duration all influence the added energy cost.
Are smartwatch hiking calories accurate?
Treat them as estimates. Consumer wearables calculate energy expenditure from sensor readings and personal data rather than measuring calories directly, and validation studies have found substantial error in energy-expenditure estimates. They are more useful for comparing your own hikes consistently than for obtaining an exact calorie measurement.
Sources
- 2024 Adult Compendium of Physical Activities — Walking — MET values for hiking, backpacking, hill climbing, walking speed, and carried loads.
- Centers for Disease Control and Prevention — Physical Activity and Your Weight and Health — calorie examples, health benefits, and the role of physical activity in weight management.
- Centers for Disease Control and Prevention — Adding Physical Activity as an Adult — current adult activity recommendations and guidance for beginning vigorous exercise.
- National Park Service — Hike Smart — trail selection, weather, trip planning, supplies, hydration, and hiking-safety guidance.
- Fuller et al. — Reliability and Validity of Commercially Available Wearable Devices — evidence on the limitations of wearable energy-expenditure estimates.
- Saeedy Robat et al. — Nature-Based Interventions for Stress, Anxiety and Depression — 2026 evidence review on psychological outcomes associated with nature-based interventions.