Estimate how long your hike will take using Naismith's Rule with pace adjustments.
Route Details
km
m
Time Estimate
Enter route distance and ascent to estimate your time.
About this calculator
Overview
This calculator applies Naismith's Rule: allow 1 hour for every 5km (3 miles) of forward distance, plus 1 hour for every 600m (2000ft) of ascent. We adjust these base numbers for your selected pace profile.
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Fun Facts
"William Naismith, a Scottish mountaineer, devised this rule in 1892."
"The rule assumes a reasonably fit hiker on a steady surface; difficult terrain or heavy packs will increase time requirements."
"Don't forget to add time for rests, meals, and photography—usually 30-60 minutes for Every 4 hours of hiking."
