Calculate your marathon pace. Enter your target finish time or goal pace to see your splits, speed, and projected finish time for 26.2 miles.
The marathon (26.2 miles / 42.195 km) demands careful pacing strategy. Going out too fast in the first half is the most common mistake marathoners make, often leading to dramatic slowdowns after mile 20.
Use this calculator to determine your target pace. Enter your goal finish time to see the per-mile and per-kilometer pace you need to hold. The calculator shows your halfway split and 20-mile mark time, plus complete mile-by-mile splits for race day.