Half Marathon Pace Calculator

Find the pace you need to hit your half marathon goal time, with splits at 5K, 10K, 15K and 20K. Example: a 1:50:00 half marathon is 8:23 per mile.

How to use the Half Marathon Pace Calculator

1. Enter the values in the fields.
2. Press Calculate to see the result with the steps shown.

Formula and method

Pace = finish time / distance, using 13.1094 miles (21.0975 km).

Half marathon pace chart

Goal time,Pace per mile,Pace per km,1:30:00,6:52,4:16,1:40:00,7:38,4:44,1:50:00,8:23,5:13,2:00:00,9:09,5:41,2:10:00,9:55,6:10,2:30:00,11:27,7:07

Pacing strategies

Even splits, slight negative splits (second half faster) and fast-start strategies are common. Most recreational runners run best with even or slightly negative pacing.

Fueling and training

Take 30 to 60 g of carbohydrate per hour for efforts over 75 minutes. Weekly long runs up to 10 to 12 miles with some race-pace work prepare most runners.

Cautions

This calculator gives estimates for education and planning, not medical advice. Check with your doctor before major changes to diet, exercise or medicines, especially if you have a medical condition.

Frequently asked questions

What pace is a 2 hour half marathon?

9:09 per mile (5:41 per km).

What is a good half marathon time?

Around 1:55 to 2:15 for many recreational runners.

How should I pace a half marathon?

Even or slightly negative splits.

How long is a half marathon?

13.1 miles or 21.0975 km.

What pace for 1:45?

8:01 per mile.

How do I predict my time?

Use the Race Time Predictor.

Sources

• World Athletics
• Running USA

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