Skip to content
CalcWolf Fitness Lauf-Splits-Rechner
Fitness

Calculate Mile & Kilometer Splits

Get even split times for any race distance. See per-mile and per-km pace for your target finish time.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

Strategie

Negative Splits: 2. Haelfte schneller — Strategie der Eliten. Even Splits: konstantes Tempo. Positive: am Ende langsamer — zu schnell gestartet.

Nach Distanz

5K: Zielpace ab Start. 10K: 5 sek/km langsamer im 1. km. Marathon: erste 5 km LANGSAM — Geduld rettet die letzten 10 km.

⚡ CalcWolf Insight

The marathon "wall" at mile 20 is not inevitable — it happens because runners deplete glycogen stores by going out too fast. Even-split or negative-split strategies, combined with proper fueling (30-60g carbs/hour during the race), can eliminate the wall entirely. Most 3-hour marathoners feel strongest in the final miles because they paced correctly.

Frequently asked questions
Negative oder positive Splits?
Negative (am Ende schneller) ist ideal. Konservativ starten.
Marathon-Strategie?
Erste 5 km langsam. Ab km 8 stabilisieren. Ab km 30 beschleunigen wenn moeglich.
✓ Math logic verified against primary sources → See our verification process
Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
🐛 Report a Calculator Error
Found a bug or outdated data? Reports go directly to Kevin and are reviewed personally.