Trail Running Pace Calculator
Estimate average trail pace from distance, elevation gain and flat pace.
Input Data
Distance
Elevation
Flat Pace Min
Results
Estimated total time.
65
Estimated average pace.
6.5
Explanatory note about the result.
10km / 爬升 500m / 6分/km → 總 65 分，平均 6.5 分/km。
At a glance:Add time per metre of gain to the flat time; common rules add ~10 s per 100 m (or use Naismith's ~10 min per 100 m / 6 km flat). Complements running and pace-calculator.
Formula
flatTime = distance × flatPaceMin.
gainTime ≈ elevation × factor (e.g. 0.1 min/m).
total = flatTime + gainTime.
How to Use
- Enter distance, elevation gain and your flat pace.
- The tool returns estimated time and average pace.
Case Studies
10 km, 400 m gain, 5:00 flat
flat 50:00 + 400×0.1 = 40:00 → total 90:00, avg 9:00/km.
FAQ
What is Naismith's rule?
A planning rule: 1 hour per 5 km plus 1 hour per 600 m of ascent.
Related Tools
References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.