Marathon Time Calculator

Plan your marathon with target times, paces, and training recommendations

Target Marathon Time

Target Pace

4:59 /km
8:01 /mile

Race Splits

5K Split24:53
10K Split49:46
Half Marathon1:45:00

Training Paces

Easy Run6:13 /km
Long Run5:43 /km
Tempo4:44 /km
Intervals4:14 /km

Predicted Finish

3:59:47

Based on your recent race performance using Riegel formula

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

by Various

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.