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Pace to run a half marathon in 2 hours

By Jesús Narváez Tamés ·

What pace per kilometre and what speed 21.1 km in 2:00:00 is. The most searched half-marathon goal, with the exact maths.

5:41min/km

10.5 km/h

Distance
Half marathon
Time
2:00:00
Speed
10.5 km/h

Breaking two hours is the benchmark goal for the half marathon. The official distance is 21.0975 km, and those extra 97 metres count: the pace above comes from the exact distance, not a round 21.

Holding it for well over an hour and a half depends on your base more than on intervals. Plenty of zone 2 volume, one long run a week and some blocks at goal pace in the last weeks. On race day, GPS usually measures a little long, so do not trust your watch’s instant pace.

How this was calculated

Pace = total time / kilometres. There is no training formula here: it is the arithmetic of a result you already have.

Nearby values

The same calculation changing only the time. The highlighted row is this example.

TimeResult
1:50:005:13 min/km11.5 km/h
1:55:005:27 min/km11.0 km/h
2:00:005:41 min/km10.5 km/h
2:05:005:55 min/km10.1 km/h
2:10:006:10 min/km9.7 km/h

Adjust it to your numbers

The calculator starts from this example. If you change a field, that value is saved only on this device.

Units
Pace
9:09min/mi
Speed
6.55mph
Total time
2:00:00

Prediction (Riegel formula)

  • 1 km
    4:447:37/mi
  • 5 km
    26:058:24/mi
  • 10 km
    54:238:45/mi
  • Half marathon
    2:00:009:09/mi
    current
  • Marathon
    4:10:129:33/mi

The Riegel formula assumes adequate training for the target distance. For marathons it tends to overestimate.

Open the calculator without this example

Disclaimer: this calculator provides educational information and estimates based on standard formulas. It is not a substitute for personalised advice from a doctor, nutritionist or trainer. Consult a professional before making significant changes to your diet or training.
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Frequently asked questions

What pace do you need for a 2-hour half marathon?+

Half marathon in 2:00:00 is 5:41 min/km (10.5 km/h). It is the average pace over the official 21.0975 km. With GPS, aim a few seconds faster.

Is a 2-hour half marathon good?+

Half marathon in 2:00:00 is 5:41 min/km (10.5 km/h). For a recreational runner, yes. It is the most chased barrier after a sub-60 10K.

Worked examples

A specific profile, with the number already done. Open it if it looks like you, then adjust.