What this result means
US road races and many English-language plans think in miles. This table always splits every mile. Distance can still be entered in kilometres if the header is km — the interval stays one statute mile.
The kilometre split calculator is the sibling. The general race split calculator follows the unit toggle. Use this landing when the course is mile-marked.
A 26.2 mile marathon in 4:00:00 is about 9:09 per mile. Mile 13 is near 1:59, not exactly half of 26.2. A 10 mile race in 1:10:00 is 7:00 per mile; mile 5 is 35:00.
A half marathon entered as 13.1 miles in 1:45:00 is about 8:01 per mile. That matches the 1:45 half-marathon pace page’s mile pace.
Calculation method
Each mile time is target time multiplied by (mile index × 1.609344 ÷ distance in km). The finish row is the full time. Rounding is to the nearest second.
Exact arithmetic. A “26 mile” course is not a marathon; enter 26.219 miles or 42.195 km for the official distance.
Mile markers on a certified course are not always where a watch says. The table is even running, not GPS.
Frequently asked questions
What pace is a 4-hour marathon in miles?
About 9:09 per mile even. Enter 26.2 miles or 42.2 km and 4:00:00.
Can I enter kilometres and still get mile splits?
Yes. The distance converts; the interval stays one mile. For 1 km rows use the kilometre split calculator.
Is a mile 1.6 km?
This site uses 1.609344 km per mile, not a rounded 1.6.
Should I use the marathon pace calculator instead?
Use that page for official marathon even pace and a short split list. Use this page when you want every mile row on any distance, including a 10 mile or a 26.2 mile goal.