Running pace & race prediction
Time on a distance → pace and predicted finish on other distances (Riegel formula)
Your result
Pace
12.0 км/год
5:00 /км
Predicted finish (Riegel)
- 5k (5 км)23:59
- 10k (10 км)50:00
- Half (21.0975 км)1:50:19
- Marathon (42.195 км)3:50:01
Riegel formula: T₂ = T₁ × (D₂/D₁)^1.06 — for trained runners; beginners add 5–10% on long distances. Even pacing beats 'fast-slow' every time.