Marathon Pace Calculator
Calculate your marathon pace, splits, and finish time.
Plan your race strategy for 5K, 10K, half, and full marathon.
Race Plan
Marathon pace is expressed as minutes per mile or minutes per kilometer.
Common race distances:
- 5K: 3.107 miles / 5 km
- 10K: 6.214 miles / 10 km
- Half Marathon: 13.109 miles / 21.097 km
- Full Marathon: 26.219 miles / 42.195 km
Pace conversion:
Finish Time = Distance × Pace per Unit
Pace per km = Pace per mile × 0.6214
Pace strategy:
- Even pace: Same pace throughout (recommended for most runners)
- Negative split: Faster second half (ideal but hard to execute)
- Positive split: Slower second half (common but not ideal)
Approximate race pace relationships:
- Marathon pace is typically 15–20% slower than 10K pace
- Half marathon pace is about 5–7% slower than 10K pace
- 5K pace is about 5% faster than 10K pace