⭐ 0
🔍
Text Image PDF & Docs Audio Music Electronics Time Utilities Validators Esoteric Games

Half Marathon in 2 Hours: Pace per KM and Mile

Calculate your running pace per km and per mile, finish time and km splits, or predict race times with the Riegel formula — right in your browser.

Processing... 0%
Reading race data
Calculating pace and speed
Building split table

Result

This page opens the running pace calculator with a half marathon (21.0975 km) in 2:00:00 already filled in: the required pace is 5:41 per kilometer, which equals 9:09 per mile or about 10.5 km/h (6.6 mph).

Breaking two hours is the most common half-marathon goal worldwide. The split table gives you checkpoints for the first ten kilometers plus 15 km and 20 km, so you can tell mid-race whether you are on schedule — 56:53 at 10 km and 1:53:45 at 20 km leave just the final 1.1 km to the line.

Try 1:55:00 or 1:50:00 to plan the next step, or feed a recent 10K into the predictor mode to check whether a two-hour half is realistic for you today.

🛡️
Executed in Browser

Your files and inputs never leave this device. Processing runs completely offline. 100% Secure.

Accepted Formats & Rules

  • Pace mode: distance + time gives pace per km, pace per mile, speed and km splits
  • Time mode: distance + target pace gives your projected finish time
  • Predictor mode: one known race result forecasts 5K, 10K, half and marathon times with Riegel's T2 = T1 × (D2/D1)^1.06

Key Benefits

✓ Three calculators in one: pace from a race result, finish time from a target pace, and Riegel race-time predictions.
✓ Metric and imperial at once: every pace is shown in min/km and min/mile, every speed in km/h and mph.
✓ A ready split table for your distance, so you know exactly what the clock should show at every kilometer mark.

Use Cases

  • • Signed up for a 10K and want to know what pace gets you across the line in under 50 minutes?
  • • Need km-by-km split times written on your hand for Sunday's half marathon?
  • • Wondering what marathon time your latest 10K result predicts?