Hiking Time Calculator

Estimate how long a hike takes from its distance and total climb, and see when you would arrive from a chosen start time.

Enter the distance, ascent and base speed to estimate the walking time.

Naismith's rule: time = distance ÷ base speed + 1 hour for every 600 m of ascent (A. A. Naismith, 1892), which assumes steady walking on firm, open ground. Descents, rests, rough terrain, altitude, heat and group pace are not included, so treat the result as a moving-time floor and add margin before setting off. Distances are limited to 0.1–100 km and ascent to 0–10,000 m. Everything runs locally in your browser.