A 3-mile hike burns about 455–760 calories for 160–200-lb hikers on typical trails; pace, grade, and pack weight shift the total.
You came here for a clear number and a simple way to get your own estimate. You’ll get both in the first screen, then a deeper breakdown that shows how pace, hills, and pack weight change the math. All figures below use published MET values and the standard calorie equation used by exercise scientists.
Calories Burned On A 3-Mile Hike — What To Expect
On mixed, non-technical trails without a heavy pack, hiking sits at about 6.0 MET. Using the standard formula, that lands many adults in the 400–800 calorie window for three miles. The table below shows realistic ranges for common body weights, using two trail profiles most hikers meet on day trips.
Estimated Calories For Three Miles By Body Weight
Assumptions: 3 miles at roughly 3 mph (about 60 minutes). “Typical Trail” = 6.0 MET. “Hilly Route” = 8.0 MET (sustained climbs).
| Body Weight | Typical Trail (6.0 MET) | Hilly Route (8.0 MET) |
|---|---|---|
| 120 lb | ~345 kcal | ~455 kcal |
| 140 lb | ~400 kcal | ~535 kcal |
| 160 lb | ~455 kcal | ~610 kcal |
| 180 lb | ~515 kcal | ~685 kcal |
| 200 lb | ~570 kcal | ~760 kcal |
| 220 lb | ~630 kcal | ~840 kcal |
| 240 lb | ~685 kcal | ~915 kcal |
Where Those Numbers Come From
Hiking on varied ground maps to about 6.0 MET in the Adult Compendium of Physical Activities. Climbing steeper grades or carrying a load pushes work rate higher; uphill walking in the 6–15% range is listed near 8.0 MET, and backpacking/day-pack entries sit in the 7–8 MET band. The energy equation many labs and training texts use is:
Calories = MET × 3.5 × body weight (kg) ÷ 200 × minutes
Use that once, and you can size your own burn for any route with a quick tweak to minutes or METs.
Fast DIY Method: Get Your Personal 3-Mile Estimate
Step 1 — Pick A MET
- Moderate trail, no heavy pack: 6.0 MET
- Steady climbs or lots of stairs/steps: 7.0–8.0 MET
- Big climbs with a loaded pack: 8.0–9.0 MET
Step 2 — Set Your Time
- 2.0 mph: 90 minutes for 3 miles
- 2.5 mph: 72 minutes
- 3.0 mph: 60 minutes
- 3.5 mph: ~51 minutes
Step 3 — Do The Quick Math
Convert body weight to kg (pounds × 0.4536). Then plug into the equation above. A sample for a 180-lb hiker on a rolling loop at 3 mph (60 minutes) at 6.0 MET:
6.0 × 3.5 × 81.6 ÷ 200 × 60 ≈ 515 kcal
Why Pace, Grade, And Pack Change Your Calorie Burn
Pace And Time On Feet
Calories scale directly with minutes. If your pace slows due to rocks, snow, or photo stops, the clock ticks longer and the total climbs.
Elevation Gain And Surface
Climbing ramps up oxygen cost fast, which bumps METs. Loose gravel, sand, mud, and steps do the same by forcing extra stabilization with each stride.
Pack Weight
Even a light day pack adds work. The Compendium lists backpacking and hiking with a day pack in a higher band than unladen walking. A heavy overnight load moves the needle even more.
Cardio Fitness And Economy
Fitter hikers tend to move with smoother mechanics. That can shave a little energy per step, yet most of the swing still comes from minutes, grade, and load.
Authoritative Sources Backing The Numbers
The MET values come from the peer-reviewed Compendium of Physical Activities. You can see hiking and uphill walking values in the Compendium’s tracking guide (hiking MET entries). To gauge how hard your effort feels on trail, the CDC’s talk-test page lays out intensity cues that match MET ranges (CDC intensity guidance).
What If Your Route Isn’t Flat Or Your Pace Varies?
Most hikes mix flats, rollers, and climbs. A simple way to keep estimates honest is to split the outing into chunks and tally each chunk separately. Here’s a quick template you can use with a phone note:
- Segment A: 1 mile of gentle trail at ~3 mph → 20 minutes at 6.0 MET
- Segment B: 1 mile of steady uphill at ~2.5 mph → 24 minutes at 8.0 MET
- Segment C: 1 mile of rolling descent at ~3.5 mph → ~17 minutes at 6.0 MET
Run the equation on each segment, then add. This beats a single average when your profile has long climbs or a slow, technical descent.
How Many Calories Does A 3-Mile Hike Burn At Different Paces?
To show the time effect cleanly, the table below holds MET steady at 6.0 (a typical trail) and fixes body weight at 160 lb. Change the weight or MET and you can scale from here.
Pace Vs. Time Vs. Calories (160 lb, 6.0 MET)
| Pace | Minutes For 3 Miles | Estimated Calories |
|---|---|---|
| 2.0 mph | 90 | ~685 kcal |
| 2.5 mph | 72 | ~550 kcal |
| 3.0 mph | 60 | ~455 kcal |
| 3.5 mph | 51 | ~390 kcal |
How To Nudge The Burn Up (Or Down) Safely
Add A Gentle Grade
Climbs have the biggest impact. A route with steady elevation gain can lift the total by 20–40% compared with a flat loop of the same distance.
Carry A Light Pack With Water And Layers
A small pack adds work and also helps you stay out longer. Keep it reasonable; comfort and footwork matter more than chasing calories.
Find A Rhythm You Can Hold
An even pace keeps the oxygen demand steady. That’s easier on your legs and lets you cover more ground per hour.
Use Poles On Steep Trails
Poles shift a slice of the effort to your upper body and improve balance on loose steps. That can make longer climbs doable without blowing up your legs.
Sample Scenarios For Three Miles
Local Nature Preserve Loop
Flat dirt path with a few short bumps. Pace sits near 3 mph. A 160-lb hiker lands near ~455 kcal. A 200-lb hiker lands near ~570 kcal.
Rugged City Stairs + Hill Repeats
Steep stair sets and ramps push work rate higher. Keep time close to an hour and you’ll sit near the 7–8 MET band. That moves a 180-lb hiker from ~515 kcal to ~685 kcal.
Coastal Sand Track
Soft sand costs extra with every step. Even modest dunes can feel like climbs. Expect totals near your hilly route number at the same body weight.
Handy Rule-Of-Thumbs
- Body weight up → calories up. The increase is linear in the equation, so each 20 lb adds a clear bump.
- Minutes up → calories up. Slow terrain raises time and the total.
- Climbs and load up → MET up. That multiplies the whole result.
Make Your Tracker Data Work For You
Most watches estimate calories with heart rate and pace. Treat those like ballpark figures. The MET-based method here gives you a transparent baseline you can check against your device on a few hikes. If your watch and the manual math match within a small margin on several routes, you can trust the patterns it shows day to day.
Method, Sources, And How To Recreate These Tables
Calorie math used the standard MET formula shown earlier with MET entries from the Compendium. “Typical Trail” used 6.0 MET. “Hilly Route” used 8.0 MET to reflect sustained climbing. Durations matched the pace needed to cover three miles. You can plug your own numbers into the same equation and get a tailored estimate in seconds.
Reference entries: hiking and uphill walking values appear in the Compendium’s current tracking guide linked above, and its overview page explains MET and how it anchors energy cost across tasks. The CDC page linked above explains intensity in plain language and gives a simple talk-test that fits trail use.
Quick Calculator Card You Can Save
Inputs You Need
- Body weight in pounds
- Expected minutes for your route
- MET for the route: 6.0 for mixed trails; 7.0–8.0 for long climbs; 8.0–9.0 if carrying a heavy pack
One-Line Equation
Calories = MET × 3.5 × (lb × 0.4536) ÷ 200 × minutes
Example
Say 200 lb, 60 minutes, rolling trail → 6.0 × 3.5 × 90.7 ÷ 200 × 60 ≈ 570 kcal.
Bottom Line For Trail Planning
Three miles on rolling ground lands many adults near 400–800 calories. Hills, time on feet, and pack weight drive the swing. Pick a MET that fits your route, set your minutes, and run the simple equation. You’ll get a number you can plan snacks, water, and pacing around with confidence.