How Many Calories Do I Burn Hiking? | Trail Smart Math

Calories Burned From Hiking: What Changes The Number

Calorie burn climbs with body weight, grade, pack load, pace, and footing. A heavier hiker uses more energy at the same speed. Hills and steps raise effort further. A pack pushes the number up again, even at a steady pace.

How The Math Works (METs, Weight, And Time)

Researchers use MET values to rate activities. A MET compares an activity to sitting still. Hiking on varied ground sits around 5–6 MET, while backpacking or steep climbs land closer to 7–9 MET. Convert that rating into calories with a simple line: calories per minute = 0.0175 × MET × body weight in kilograms. Multiply by minutes to get your session total.

Quick Reference: Hourly Burn By Weight And Terrain

The numbers below come from common MET entries for cross-country hiking (≈6.0 MET), walking through fields and hillsides at a normal pace (≈5.3 MET), and hiking with a daypack or steeper sections (≈7.0 MET). Values are rounded to keep the table scannable.

Estimated Calories Per Hour While Hiking

Body Weight (lb)	Easy Trail (≈5.3 MET)	Uphill/With Pack (≈7.0 MET)
120	≈303	≈400
150	≈379	≈500
180	≈454	≈600
210	≈530	≈700
240	≈606	≈800

Calorie targets for the day sit in the background here. Snacks fit better once you set your daily calorie needs. Keep the hike math separate from weight goals, then line them up.

Pace And Grade: Why Two Hikes Feel So Different

Speed shapes the oxygen cost, but grade matters even more on trails. A brisk walk at 3.5 mph on level ground can feel steady; that same speed on a 5–10% climb pushes your effort up a full MET or more. Steeper grades, switchbacks, and rock steps keep the burn high even when your watch shows slow miles.

Pack Weight And Footing

Carrying a pack changes the picture. A modest load can bump an easy outing into a mid-range intensity. Add rough footing—roots, scree, sand—and you’re spending more energy just to stay stable. This is why experienced hikers trim ounces and use poles on loose terrain.

How To Estimate Your Own Hike

Step 1 — Pick A MET That Fits

Use these anchors: hiking on varied ground around 6 MET, hiking with a daypack or steady climbs around 7 MET, and hill climbs with heavier loads up near 8–9 MET. For a lighter stroll through fields and rolling hills, use 5.3 MET.

Step 2 — Apply The Formula

Convert weight to kilograms (lb ÷ 2.2046), then plug into calories/min = 0.0175 × MET × kg. Example: 170 lb (77.1 kg) at 6 MET over 90 minutes: 0.0175 × 6 × 77.1 × 90 ≈ 727 calories.

Step 3 — Adjust For The Details

Move the MET up a notch for long climbs, heat, altitude, or poor footing. Drop it a touch for smooth, shaded paths. If you wear a heart-rate strap and know your steady zones, you can sanity-check the estimate against feel.

Trail Scenarios With Realistic Numbers

One-Hour Out-And-Back

150 lb on rolling singletrack at 5.3 MET: ≈380 calories. Add a 15–20 lb pack, shift to 7.0 MET: ≈500 calories. Steepen the final climb and you’re near 600 calories at the same body weight.

Longer Weekend Loop

180 lb across mixed terrain with steady climbs at 6.0 MET for four hours: ≈2,400 calories. Spread that across snacks and water that match the effort. On a hot day, the same loop can feel harder and burn more due to heat stress, slower pace spikes, and frequent stops.

How Hills And Loads Change The Burn

These MET entries capture the bump from climbing and carrying. Numbers below use a 170 lb (77.1 kg) hiker for clarity.

Hill And Pack Load Impact (170 lb)

Terrain/Load	Approx. MET	kcal Per Hour
Hills, no load	6.5	≈526
Hills, 10–20 lb pack	7.3	≈591
Hills, 21–42 lb pack	8.3	≈672
Hills, 42+ lb pack	9.0	≈729

Where The Reference Numbers Come From

Researchers catalog common activities in a database of MET values and update it as new data arrives. Hiking, cross-country sits near 6 MET, a normal-pace walk through fields and hillsides around 5.3 MET, and backpacking or organized walking with a daypack around 7 MET. You can also scan the walking section for grades and speeds to match your route. For intensity context, the CDC’s overview on METs and relative effort is a helpful short read.

Fuel, Fluids, And Pacing

Fuel

Plan 150–250 calories per hour from easy-to-digest carbs on steady efforts, with more during long climbs. Mix in a small hit of protein on multi-hour days. Keep fibers and heavy fats low while moving; save richer snacks for scenic breaks.

Hydration

Start topped up. Pack 0.4–0.8 liters per hour based on heat, altitude, and shade. Add electrolytes if you’re a salty sweater or the route is exposed. Refill when water sources are clean and permitted.

Pacing And Technique

Shorten strides on steep grades and keep a steady cadence. Trekking poles help on loose ground and take a little load off knees during descents. If rocky sections spike your breathing, slow to a talkable pace for a few minutes and let the heart rate settle.

How This Compares To Other Cardio

Moderate trail time lands above a brisk urban walk and below an all-out run. It’s a sweet spot for time-on-feet fitness with less pounding than road running. On big hills, the oxygen cost climbs fast and the calorie burn tracks with it.

DIY Estimator Cheat Sheet

Pick A MET

• Fields/rolling hills at a casual pace: ~5.3
• Varied singletrack: ~6.0
• With daypack or steady climbs: ~7.0
• Steep hills with heavier loads: ~8–9

Do The Math

• Weight (kg) = pounds ÷ 2.2046
• Calories/min = 0.0175 × MET × kg
• Session calories = result × minutes

Reality Checks

• Heat, altitude, sand, snow, and heavy tread raise effort
• Packs change the picture; trim non-essentials
• Use breathing and talk test to keep pace in the right zone

Where To Go Next

Want a step-by-step plan to balance trail days with body goals? Skim our calorie deficit guide once you’ve sized your hike burn.