How do I calculate my running pace?

Pace is the time it takes to cover a specific distance. If you finish a 10K in 50 minutes, you are running at 5 minutes per kilometer. Enter your distance and time above, and this calculator will figure out your pace instantly.

What is a good running pace?

There is no single good pace. It all depends on your fitness and goals. A comfortable everyday jog might fall between 6:00 and 7:00 per kilometer. A 4-hour marathon requires a steady 5:41 per kilometer.

What is the difference between pace and speed?

They measure the exact same effort in opposite ways. Pace is the time it takes to cover a distance, like 5:00 per kilometer. Runners usually think in pace. Speed is distance covered over time, like 12.0 km/h, which you see on treadmills.

Can I save or share my split times?

Yes. The calculator updates the page URL automatically as you type. Copy the link to share a target pace with your club, or use the copy button to paste the table into your notes.

Pace Calculators

Pace Calculator

Calculate exactly how fast you need to run. Enter your distance and time to see your pace and detailed splits.

Distance

Auto km

Time

Auto

mm:ss or h:mm:ss

Pace

Auto min/km

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Enter any two and we fill in the third.

Pace

5:00 /km

km/h

12.0

mph

7.5

min/mi

8:03

Finish

50:00

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Splits

Every 5 km or 5 mi is marked as a quick race-day checkpoint.

Splits
Split	Pace	Elapsed
1 km	5:00	5:00
2 km	5:00	10:00
3 km	5:00	15:00
4 km	5:00	20:00
5 km	5:00	25:00
6 km	5:00	30:00
7 km	5:00	35:00
8 km	5:00	40:00
9 km	5:00	45:00
10 km	5:00	50:00

A running pace calculator is the best place to start when planning your next race. It helps you quickly figure out exactly how fast you need to run.

Just type in your distance and time, and we will show your pace. Distances default to kilometers, but you can easily switch to miles.

How pace works

pace = time ÷ distance

Pace is simply the time it takes you to cover a set distance. If you run 10 kilometers in 50 minutes, you are spreading those 50 minutes over 10 km. This gives you a pace of 5:00 per kilometer.

Common race paces

Checking the required pace is a great way to see if your race goal is realistic. Finishing a 5K in 25:00 means holding 5:00 per kilometer. A 50:00 10K requires that exact same 5:00 per km pace, just held for twice as long.

A 1:45:00 half marathon means settling into a 4:59 per km rhythm. For a full marathon, a 3:30:00 finish time asks for that same 4:59 per km pace, sustained for the entire 42.195 kilometers.

Sub-3, sub-4, and other target paces

Many runners build their marathon goals around major milestone times. To hit these targets, you need to lock into a specific average pace:

Sub-3:00 marathon: 4:15 per km
Sub-3:30 marathon: 4:58 per km
Sub-4:00 marathon (サブ4): 5:41 per km
Sub-4:30 marathon: 6:23 per km
Sub-5:00 marathon: 7:06 per km

The marathon heavily rewards even pacing. Try to treat these numbers as a steady rhythm you can settle into from the start line.

Kilometer pace calculator

Outside the United States and the UK, almost the entire running world thinks in minutes per kilometer. In Tokyo, all race markers and pacing groups use metric.

This calculator defaults to kilometers. Enter your distance and target time to instantly get your pace along with a detailed kilometer-by-kilometer split table.

Running in Tokyo

If you are training for the Tokyo Marathon, you are preparing for one of the flattest and fastest courses in the world. An even pacing strategy is the most effective way to run it. Find your goal pace here, and plan your splits so you do not run too fast early on. The first few kilometers have a slight downhill, making it especially important to stay relaxed.

Joining a local group run is a great way to put your pacing to the test. Our free weekly email rounds up the best community runs across the city. You can also use our club directory to explore local Tokyo run clubs and find people running at your speed.

Keep running in Tokyo

Get a free weekly email of upcoming running events across Tokyo.

How to use this tool

Enter your numbers

Type in your race distance and goal time. Formats like 50:00 work perfectly.
Get your exact pace

The calculator instantly solves for your pace. You will see exactly how fast you need to run.
Plan your splits

Review your split table to see when you should hit each checkpoint. You can copy these splits straight to your phone.

Pace vs. speed

Runners usually think in pace, while treadmills show speed.

How running pace and speed measure the same effort
Metric	What it measures	Example
Pace	Time per distance	5:00 /km
Speed	Distance per time	12.0 km/h

FAQ

How do I calculate my running pace?: Pace is the time it takes to cover a specific distance. If you finish a 10K in 50 minutes, you are running at 5 minutes per kilometer. Enter your distance and time above, and this calculator will figure out your pace instantly.
What is a good running pace?: There is no single good pace. It all depends on your fitness and goals. A comfortable everyday jog might fall between 6:00 and 7:00 per kilometer. A 4-hour marathon requires a steady 5:41 per kilometer.
What is the difference between pace and speed?: They measure the exact same effort in opposite ways. Pace is the time it takes to cover a distance, like 5:00 per kilometer. Runners usually think in pace. Speed is distance covered over time, like 12.0 km/h, which you see on treadmills.
Can I save or share my split times?: Yes. The calculator updates the page URL automatically as you type. Copy the link to share a target pace with your club, or use the copy button to paste the table into your notes.