Running & Triathlon
⚡ Pace Calculator

Half Marathon Pace Calculator

Instantly calculate your half marathon finish time from your running pace, or find the exact pace you need for a sub-1:45, sub-2:00, or any goal time over 21.1 kilometers.

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Half Marathon Pace Chart

Pace (min/km)Pace (min/mile)21.1km Finish Time
3:305:381:13:41
3:456:021:19:04
4:006:261:24:26
4:156:501:29:49
4:307:141:35:11
4:457:381:40:34
5:008:031:45:56
5:158:271:51:19
5:308:511:56:41
5:459:152:02:04
6:009:392:07:27
6:3010:282:18:12
7:0011:162:28:57
7:3012:042:39:42
8:0012:532:50:27

Sub-2 Hour Half Marathon Pace

To run a half marathon in under 2 hours you need to average faster than 5:41 per kilometer (9:09/mile). Target 5:35–5:38/km to build a small buffer. This is one of the most popular milestone goals in recreational running.

💡 Sub-2hr tip: Run the first 5km at 5:42/km — it feels easy. Use km 8–16 to lock in race pace. Save your push for the final 5km.

Sub-1:45 Half Marathon Pace

A 1:45 half marathon requires 4:59 per kilometer (8:01/mile). This puts you in the competitive amateur bracket. Strong tempo training at 4:40–4:45/km is essential for this goal.

Half Marathon Distance — 21km or 21.1km?

The official half marathon distance is 21.0975 kilometers (13.1094 miles), exactly half of the 42.195km marathon. Most races and calculators round to 21.1km. The difference between 21km and 21.1km at a 5:00/km pace is just 30 seconds.

Frequently Asked Questions

What is a good half marathon time?

For recreational runners, sub-2:00 (5:41/km) is an excellent benchmark. Sub-1:45 (4:59/km) is competitive. The global average finish time is approximately 2:00–2:15.

What pace is a 1:45 half marathon?

A 1:45:00 half marathon requires an average pace of 4:59 per kilometer (8:01 per mile).

What pace is a 2 hour half marathon?

A 2:00:00 half marathon requires an average pace of 5:41 per kilometer (9:09 per mile).

How long does it take to run a half marathon?

Average recreational runners finish a half marathon in 1:45–2:30. First-timers often finish in 2:00–2:30. Elite runners finish under 1:00.

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