Estimate your hiking duration based on distance, elevation gain, terrain type, descent conditions, and break time.
Five quick inputs, one accurate estimate.
Type your trail distance in kilometers.
Enter total elevation gain and loss in meters.
Choose roads & paths or rough terrain.
Select descent type and add planned break minutes.
Hit calculate for your total estimated hiking time.
Most hikers move at 4–5 km/h (2.5–3 mph) on flat, well-maintained trails. That drops to around 3 km/h on rough or hilly terrain, and can fall to 1–2 km/h on steep, technical ground. Fitness level, pack weight and altitude all shift these numbers up or down.
Rough estimates by distance and terrain — no elevation gain included.
| Distance | Flat Terrain (~5 km/h) | Rough Terrain (~4 km/h) |
|---|---|---|
| 5 km | 1 hr | 1 hr 15 min |
| 10 km | 2 hr | 2 hr 30 min |
| 15 km | 3 hr | 3 hr 45 min |
| 20 km | 4 hr | 5 hr |
| 25 km | 5 hr | 6 hr 15 min |
It depends on four things: distance, elevation gain, terrain, and how long you plan to rest. Enter all four into the calculator above and you'll get a total that's far more realistic than distance alone — especially on hilly or rough trails where pace drops well below your flat-ground speed.
Devised in 1892, Naismith's Rule is still the fastest mental estimate for any hike: allow 1 hour for every 5 km, then add 1 hour for every 600 m climbed.
Built on Naismith's Rule with terrain and descent adjustments.
See exactly how the Hiking Time Calculator builds your estimate.
Distance = 12 km · Elevation Gain = 800 m · Elevation Loss = 500 m · Terrain = Rough · Descent = Gentle · Break = 20 minutes
Beyond distance and elevation, these real-world variables shape your true pace.
A trained hiker can sustain higher speeds on climbs; beginners should add 15–25% to estimated times.
A loaded multi-day pack slows pace and increases fatigue, especially on long ascents.
Heat, wind, rain and snow all slow movement and may force longer or more frequent breaks.
Mud, scree, snow patches and exposed roots demand careful footing and reduce sustained speed.
At high altitude, thinner air can drop your hiking pace by 10–30%, even for experienced hikers.
Steep, technical or off-trail terrain demands navigation skills and significantly slows progress.
Photos, snacks, navigation checks and views all eat into the day — plan for them, don't ignore them.
Common questions about the Hiking Time Calculator and Naismith's Rule.
A hiking time calculator gives a solid estimate — usually within 10–20% of real-world hiking times — provided you choose the correct terrain and include realistic break time.
Naismith's Rule is a hiking pace formula from 1892 that estimates 1 hour per 5 km plus an additional hour for every 600 m of elevation gain. This calculator extends it with terrain and descent adjustments.
Yes. Climbing significantly slows your pace. Every 600 m of elevation gain typically adds about one hour on top of the distance-based estimate.
Rough terrain reduces sustained hiking speed from about 5 km/h on roads and paths to around 4 km/h. Very technical terrain can slow you further to 2–3 km/h.
Yes. The Hiking Time Calculator has a dedicated break-time input in minutes which is added to your total estimated hiking duration.
On flat roads and paths, 10 km takes around 2 hours. On rough terrain with 500 m of elevation gain, expect closer to 3 hours plus breaks.
No. Gentle descents save time, but steep descents slow you down because of careful footing, knee strain and reduced footing confidence.
Yes. The formula is universal and works for any trail worldwide — Alps, Rockies, Himalayas, Lake District or local woodland paths.
More free tools for hikers, runners and adventurers.
Use our free Hiking Time Calculator to estimate trail duration and prepare for your next outdoor adventure.