How many calories do you burn on a hike?

According to the 2024 Compendium of Physical Activities, a slow hike on hilly terrain without a backpack corresponds to 3.8 METs, compared to 7.8 METs for an organized day hike with a backpack—which is approximately 266 to 546 kcal per hour for a 70-kg person…

A hike can burn anywhere from about 250 to more than 600 kcal per hour, depending on your weight, pace, elevation gain, backpack, and the difficulty of the terrain. A single figure would be misleading: 15 km on a nearly flat trail does not require the same amount of energy as 15 km with 1,000 m of elevation gain on a rocky trail.

The Protéalpes calculator estimates the cost of walking, ascending, and descending separately. It uses the MET values from the Compendium of Physical Activities²⁰²⁴¹, then applies transparent adjustments based on backpack weight and terrain type.

To calculate calories burned, the simulator factors in body weight, actual time, distance traveled, elevation gain (D+), elevation loss (D−), and the weight carried. It displays total and active calorie expenditure, kcal per hour, kcal per minute, and kcal per kilometer.

How many calories do you burn depending on the type of hike?

The MET, or Metabolic Equivalent of Task, measures the energy expenditure of an activity relative to rest. The 2024 Compendium assigns a MET value of 3.8 to a slow hike without a pack on hilly terrain, 5.3 MET to a normal pace, 6 MET to a brisk hike over rough terrain, and 7 to 7.8 MET to backpacking or day hikes with a pack.

Activity	MET value	Calories Burned in 1 Hour for a 70 kg Person
Leisurely hike, hilly terrain, without a backpack	3,8	About 266 kcal
Standard hike, hilly terrain, without a backpack	5,3	About 371 kcal
Off-road Hiking	6,0	About 420 kcal
General Backpacking	7,0	About 490 kcal
Organized day hike with a backpack	7,8	About 546 kcal

These estimates are based on the simplified formula: kcal = MET × weight × duration in hours. They describe an average activity and do not precisely account for the breakdown between flat terrain, ascents, descents, and stops.

The calorie calculator for running is best suited for a regular run on flat terrain. This tool incorporates parameters specific to hiking: elevation gain, elevation loss, carried load, and terrain difficulty.

How do normal walking, brisk walking, and Nordic walking compare?

Normal walking on level ground yields results similar to those from a walking calculator, whereas brisk walking uphill increases the intensity and calorie expenditure.

Nordic walking engages the poles and the upper body; the Compendium assigns it a MET value of 4.3 at a moderate pace on flat terrain, 5.3 at a more vigorous pace, and 8.8 when walking uphill.

• Normal walking: a useful guideline for a route with few hills.
• Brisk walking: higher cost when the pace is actually maintained.
• Nordic walking: a separate category when the poles are actively used for propulsion.
• Mountain hiking: elevation gain and terrain difficulty take precedence over speed alone.

Why do elevation changes and terrain have such a big impact on energy expenditure?

When climbing, the muscles perform mechanical work to lift the weight of the body and the backpack. The Compendium values are therefore 7 METs for a slope of 6 to 10% at a steady pace and 8.8 METs for a slope of 11 to 20% covered at a slow to moderate pace.

Descending requires less energy than ascending at a comparable speed, but the energy cost is never zero.^Minetti’s2study,^publishedin 2002, shows that the metabolic cost decreases on a gentle downward slope and then increases again when the descent becomes steep, particularly due to muscular braking.

Component	Processing in V1	Limit
Distance and Speed	Interpolated Walking MET	Average speed masks variations in pace
Elevation gain	An additional 0.006 kcal per kilogram transported and per meter	A conservative coefficient; not validated as a clinical equation
Downhill elevation change	A surcharge of 0.0015 kcal per kilogram transported and per meter	The actual gradient of each descent remains unknown
Lot	Factor 1.00, 1.08, or 1.18	Mud, rocks, sand, and snow do not result in a uniform additional cost

The terrain affects stability, stride length, and the muscle contractions required to maintain balance. The model uses a factor of 1.00 for a smooth road or trail, 1.08 for a standard trail, and 1.18 for difficult terrain.

How does the hiking calorie calculator work?

The Protéalpes tool, currently in Version 1, follows a hybrid model. The flat-ground values are taken from the Compendium, while the adjustments for D+, D−, the backpack, and the terrain are used to account for characteristics that the general MET categories do not adequately describe.

1. Calculating average speed: distance divided by actual walking time.
2. Interpolation of the base MET: approximately 2.5 MET at very low speeds, then up to 6.5 MET at speeds above 6 km/h.
3. Bag correction: factor limited to 1.35 to prevent excessive extrapolation.
4. Land adjustment: multiplication by 1.00, 1.08, or 1.18.
5. Adding the cost of D+ and D−: a separate calculation based on the total weight transported.
6. Bounding: result scaled to a range between 2.5 and 12 average METs.

The central formula is written as follows:

The weight of the bag is not added without limit to the total expenditure. The adjustment formula is 1 + 0.7 × bag weight ÷ body weight, with a cap of 1.35.

Historical load-carrying models, such as the Pandolf equation published in^1977³, already take into account weight, load, speed, slope, and terrain. Their accuracy decreases in certain modern scenarios involving heavy loads, high speeds, or complex surfaces.

What information do you need to provide to get an accurate estimate?

The calculation is based on seven simple fields. Entering realistic values for duration and elevation gain improves the result even more than using an average heart rate alone.

Field	Expected range	Instructions
Body weight	30 to 200 kg	Use the current weight
Actual duration	Until midnight	Exclude long breaks
Distance	1 to 100 km	Use the actual distance traveled
Elevation gain	0 to 8,000 m	Report the total number of ascents
Downhill elevation change	0 to 8,000 m	Don't assume that it cancels out the D+
Weight of the bag	0 to 40 kg	Include water, food, and supplies
Lot	Easy, trail, difficult	Select the primary category

On a loop or a round trip returning to the same point, D− is equal to D+. On a traverse, a shuttle, or a route ending at a different altitude, the two values must remain independent.

Heart rate is not included in the main formula. When hiking, its relationship to oxygen consumption varies depending on heat, fatigue, altitude, stress, dehydration, and the slope.

Why does the tool display a range rather than an exact number?

Two adults of the same weight do not have exactly the same walking efficiency. Technique, physical condition, stride length, fatigue, footwear, weather, and the evenness of the terrain (among other factors) affect actual calorie expenditure.

Available Data	Presentation Uncertainty
Weight and duration only	Approximately ±30%
Distance, duration, and elevation gain	Approximately ±25%
D−, bag and field added	Approximately ±20%
Segmented GPX track	Approximately ±15 to 20%

These percentages are conservative estimates and not validated confidence intervals for each profile. Note that wearing a smartwatch does not automatically warrant a narrower range, as energy estimation algorithms vary by device.

The main result distinguishes between total calories and active calories. The calculation of active calories subtracts, approximately, the energy the body would have expended at rest during the same period of time.

How can you use this estimate to plan your energy intake?

The energy expenditure during a hike does not directly correspond to the amount of food consumed during the outing. The body also draws on its glycogen and fat reserves, while nutritional needs depend on the duration, intensity, digestive tolerance, and the goal of the day.

Two Protéalpes tools are useful in this regard:

• The daily calorie needs calculator factors activity into total daily energy expenditure.
• The basal metabolic rate calculator estimates the energy required at rest separately.

Situation	Use of the Results	Mistakes to Avoid
A few-hour outing	Compare the order of magnitude to a typical day	Mindlessly eating every estimated kcal
Long Hike	Plan ahead for water, carbohydrates, and portable food	Wait until you feel a significant drop in energy before eating
Multi-day trek	Thinking about the repetition of the days and the weight of the backpack	Underestimating the energy required for recovery
Weight loss	Track trends over several weeks	Create an aggressive deficit through sustained efforts

For prolonged endurance activities, the page oncarbohydrate intake outlines the recommended options during the activity. However, the exact requirement cannot be determined based on the number of calories displayed by the calculator.

On a hiking trip, a camping trip, or a multi-day trek, the focus shifts to daily caloric intake rather than that of a single outing. The number of kcal to consume per day must take into account basal metabolic rate, exercise, other activities, potential cold weather, and the repetition of physical exertion throughout the week.

The food carried typically combines water, carbohydrates, fats, and proteins in proportions that depend on the training program, duration, and digestive tolerance. The calculator’s results help determine meal sizes, but they do not, on their own, define the carbohydrate or protein requirements needed to resume exercise and maintain muscle mass.

Hiking is still a form of walking; a comparison with the energy expenditure of running only makes sense if the duration, weight, and intensity are explicitly comparable. Running often burns more calories per minute, whereas a hike can last several hours.

When the goal is weight loss or changes in body composition, the estimated energy expenditure should be considered over several weeks. Outdoor activities in nature can help increase the volume of movement, but maintaining muscle mass also depends on training, recovery, and total protein intake.

What scientific data does the model rely on, and what are its limitations?

The MET value is taken from the 2024 Adult Compendium of Physical Activities by Herrmann et al. The work by Minetti et al ^{.² describes}the cost of walking on extreme uphill and downhill slopes, while research on load-carrying logically shows that the weight of the bag increases the cost of locomotion.

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