RaceDayPace
Free Running Tool

Know Your
Race Pace.

Instant mile splits and pace charts for every race distance.

Calculate My Pace

e.g. 3:45:00 for a marathon

Enter your goal time above to see your splits

Pace Charts

Popular Goal Paces

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5K

Sub-20 5K

Goal19:59
Pace6:26 / mi

10K

Sub-40 10K

Goal39:59
Pace6:26 / mi

Half

Sub-90 Half

Goal1:29:59
Pace6:52 / mi

Marathon

Sub-3 Marathon

Goal2:59:59
Pace6:52 / mi

Guides

Latest Articles

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Pacing Strategy

How to Negative Split a Half Marathon

Run the second half faster than the first — with example plans for sub-2, sub-1:45, and sub-90.

Pace Strategy

What Pace Do You Need for a 1:30 Half Marathon?

Mile splits, race strategy, and training tips for sub-90.

Fueling

How to Fuel for a Half Marathon

Pre-race meals, gel timing, and hydration strategy for every goal.