webtrajanssport
en

2-Hour Half Marathon Pace

The pace and kilometre-by-kilometre splits you need to finish a half marathon in 2:00:00.

What do you want to calculate?

Type times like 45:30 or 1:45:00 and paces like 5:15. Decimal commas work too.

5:41Pace (min/km)
–Pace (min/mile)
2:00:00Finish time
–Speed (km/h)
–Speed (mph)
21.0975 kmDistance

Split table

Mark (km)SplitElapsed

This tool runs entirely in your browser; your data is never sent to a server.

What pace is a 2-hour half marathon?

To finish a half marathon in 2:00:00 you need to average 5:41 per km (9:09 per mile), or 10.5 km/h. You should pass halfway in 1:00:00. By Riegel’s formula the same performance is worth about 4:10:12 for the marathon. A realistic goal for a regular club or recreational runner following a plan. Build the long run to 18–21 km and run one tempo session a week at or slightly faster than this pace.

Pace Calculator

How to use

  1. 1Choose what to calculate: pace, time or distance.
  2. 2Enter the two values you know — for example 10 km and 50:00, or a 5:00 /km pace.
  3. 3Use the 5K, 10K, half and marathon buttons to fill in race distances.
  4. 4Read pace per km and per mile, speed and the split table; switch the splits between km and miles.

How pace, time and distance relate

Pace is time divided by distance: 50 minutes for 10 km is 5:00 per kilometre, which is 8:03 per mile and 12.0 km/h. The calculator converts with 1 mile = 1.609344 km, so a 4:00-hour marathon (42.195 km) works out at 5:41 /km or 9:09 /mile. Speed is simply the inverse of pace: 3,600 seconds divided by your seconds per km gives km/h.

Using the split table on race day

The split table shows the time you should see on your watch at every kilometre or mile if you run perfectly even pace, plus the final partial split to the finish line. Most coaches recommend an even or slightly negative split (second half a little faster) from 10K to the marathon — going out 10 seconds per km too fast in the first half is the most common reason a target slips. GPS watches often measure a race 1–2% long because you rarely run the exact racing line, so trust the official km markers.

Pace for UK and US runners

Parkruns, most UK and US road races and many training plans quote miles, while track sessions and European races use kilometres. Enter your pace in the unit you train in and read the other one off the results: 7:00 /mile is 4:21 /km, and 5:00 /km is 8:03 /mile.

Frequently asked questions

How do I calculate my running pace?

Divide your time by the distance. 25:00 for 5 km is 25 ÷ 5 = 5 minutes per km. The calculator does this for any distance and also shows the pace per mile and your speed.

What pace do I need for a 4-hour marathon?

About 5:41 per km or 9:09 per mile, run evenly. Many runners aim a few seconds per km faster to allow for crowded starts, drink stations and GPS drift.

How do I convert min/km to min/mile?

Multiply the pace by 1.609. A 6:00 /km pace is 9:39 /mile; a 9:00 /mile pace is 5:36 /km. Enter either one and the tool shows both.

What is a good 5K pace for a beginner?

Most new runners finish a 5K in 30 to 40 minutes, a pace of 6:00–8:00 per km (9:39–12:52 per mile). Run-walk pacing is completely normal at the start.

Related guides

Beginner 5K training plan: how to start running from zeroThree short run/walk sessions a week for nine weeks are enough to take most healthy beginners to a continuous 30-minute run or a first 5K. Here is the plan, the pace to use and the mistakes to avoid.How much water should you drink during exercise?Start hydrated (5–7 mL/kg about 4 hours before), keep body-mass loss under 2% and never finish heavier than you started. Here is how to measure your own sweat rate in kilograms or pounds and turn it into a drinking plan.Marathon training plan: how to build 16–20 weeks of trainingA good marathon plan is less about secret workouts and more about structure: a base, a build, a peak and a taper, with mostly easy running, a growing long run and a fueling strategy you have practised.Naismith's rule: how long will your hike take?Allow one hour for every 5 km (3 miles) and add one hour for every 600 m (2,000 ft) you climb. Here is how the rule works, how Langmuir and Tranter refined it, how the Alpine clubs calculate, and worked examples in metric and imperial.

Add this tool to your website

Paste the code below into your site’s HTML; the tool runs on your page and stays up to date automatically.

Widget builder →Free to use. Please keep the source link below the widget.

Need a website for your club?

Fast, SEO-friendly websites and Google Ads management for sports clubs, academies and gyms — talk to Webin Agency.

Get free advice

Related tools

Race Time PredictorVO2 Max CalculatorHeart Rate ZonesSteps to kmRunning Training PlanTreadmill Calculator