Calcolatore Tempo Escursione
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Moving Time
3.7 hr
Moving Time vs Trail Distance
Formula
How Hiking Time Is Estimated
Naismith's Rule
Developed in 1892 by Scottish mountaineer William Naismith:
Time = Distance / Speed + Elevation Gain / Climbing Rate
Adjustments
Esempio Risolto
Estimate time for an 8-mile trail with 2,000 ft elevation gain, average fitness.
- 01Flat time = 8 / 3 = 2.67 hours.
- 02Climb time = 2000 / 2000 = 1.0 hours.
- 03Moving time = (2.67 + 1.0) x 1 = 3.67 hours.
- 04Total with breaks = 3.67 x 1.2 = 4.4 hours.
- 05Average speed = 8 / 3.67 = 2.2 mph.
Domande Frequenti
How accurate is Naismith's Rule?
Naismith's Rule is a good baseline but tends to underestimate time for rough terrain, high altitude, or very steep trails. For technical terrain, add 30-50% more time. GPS watches with barometric altimeters give more accurate real-time data.
What about descent time?
Gentle downhill is faster than flat. Steep downhill (over 20%) is slower than flat because you must control your pace. As a rough guide, add half the climbing time for the descent of steep terrain.
How should I plan my start time?
Add a safety buffer of 1-2 hours to the estimated total time. Start early enough to finish well before sunset. In mountains, plan to be below treeline by early afternoon to avoid afternoon thunderstorms.
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