Approach Time Calculator
Estimate trail approach time for climbing based on distance, elevation gain, pack weight, and fitness level. Uses modified Naismith's Rule with Tranter's corrections.
Inputs
Results
Estimated Approach Time
1h 45m
Average Pace
26.3 min/km
How to Use This Calculator
- Enter the horizontal distance to the crag in km.
- Input the total elevation gain along the approach in meters.
- Set your pack weight in kg — heavier packs slow your pace by a measurable amount.
- Select your fitness level to apply Naismith's Rule corrections for your actual hiking pace.
- Read Estimated Approach Time in hours and minutes to plan your alpine start.
- Use the Calorie Burn estimate to decide how much food and water to carry on the approach.
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