Trail Running Pace Calculator
Trail running pace is much slower than road running due to elevation gain and rough terrain. This calculator adjusts your flat-ground pace to estimate a realistic finish time for your next trail run or race.
Estimated Finish Time
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Base Terrain-Adjusted Time (min)—
Elevation Time Penalty (min)—
Adjusted Pace (min/mile)—
Total Estimated Time (min)—
About this calculator
Estimate your adjusted trail running pace and finish time accounting for elevation gain and terrain difficulty.
Frequently Asked Questions
Why is trail pace slower than road pace?
Uneven footing, elevation changes, and technical obstacles all slow down your average pace compared to running on flat pavement.
How much does elevation gain slow you down?
A common rule of thumb is about 1-2 minutes of extra time per 100 feet of climbing, depending on steepness and fitness level.
Is this accurate for ultramarathons?
This gives a reasonable estimate for shorter trail runs, but ultra-distance events involve fatigue, fueling, and rest stops that aren't captured here.