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Hiking Time Calculator
Estimate hiking time from distance and ascent with Naismith's rule, adjusted for pace, load, descent, and rest stops.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Health & Fitness
Hiking Time Calculator
Frontend preview — no upload or external service.
Estimated time
12 km with 750 m of ascent: 2 h 24 m for the distance plus 1 h 15 m for the climb, about 3 h 40 m moving — nearer 4 h 30 m with breaks.
How the Hiking Time Calculator works
- Enter the route distance and total ascent, not just the height difference between start and summit.
- Choose a pace band honestly; Naismith assumes a fit walker on good ground.
- Add rest stops and a margin for weather, then compare against daylight hours before setting out.
The method
Naismith's rule allows a fixed walking speed on the flat plus a fixed penalty for climbing, and is the base most hill-walking estimates start from.
time = distance / 5 km/h + ascent / 600 m per hour
12 km gives 2 h 24 m, 750 m of ascent adds 1 h 15 m, totalling 3 h 39 m of moving time before any breaks.
FAQ
Is Naismith's rule accurate?
It is a reasonable base for a fit walker on a good path, and optimistic for most people. Corrections such as Tranter's account for fitness and fatigue, and rough ground can add a great deal.
Does descent take no time?
Naismith ignores it, which is wrong on steep ground. Gentle descent is slightly faster than the flat, but steep or loose descent is slower and much harder on the knees.
Why add so much for breaks?
Because moving time is not elapsed time. Lunch, navigation, photographs, and layer changes routinely add twenty to thirty percent on a full day.
How we compare
| Feature | Online Tool Store | A paper log | A subscription health app |
|---|---|---|---|
| Ascent counted separately | ✓ | Manual | Yes |
| Break allowance included | ✓ | ✗ | Sometimes |
| No account or GPS data | ✓ | ✓ | ✗ |
| Route terrain awareness | ✗ | Local knowledge | ✓ |
Hiking Time Calculator starts from Naismith and adds what it omits — breaks and steep descent — which is where a day plan usually overruns.