Forty minutes is one of the most common 5K finish times there is. It is where many people land at their first race or first parkrun, and it is right in the middle of real race results. Here is what 40 minutes means in km and miles, how it compares with real runners, and what it predicts for longer races. Every time on this page is worked out from the distance and the clock, so the numbers always add up.
40-minute 5K pace in every unit
| Measure | 40:00 for 5K equals |
|---|---|
| Pace per km | 8:00 |
| Pace per mile | 12:52 |
| Speed in km/h | 7.5 km/h |
| Speed in mph | 4.7 mph |
| One 400 m track lap | 3:12 |
| Distance in miles | 3.11 mi |
The easy number to remember is 8:00 per km: eight minutes for every kilometre. In the UK and Australia most watches show km, so that is all you need. In the US, aim for 12:52 per mile. That is a little slower than a 12-minute mile, which gives a 5K of about 37:17.
Your splits for a 40-minute 5K
| Distance passed | Clock time |
|---|---|
| 1 km | 8:00 |
| 2 km | 16:00 |
| 3 km | 24:00 |
| 4 km | 32:00 |
| 5 km | 40:00 |
| 1 mile | 12:52 |
| 2 miles | 25:45 |
| 3 miles | 38:37 |
If you pass 3 miles at 38:37, you have about 170 metres left. For more on that distance, see how long it takes to run 3 miles.
How a 40-minute 5K compares with real runners
Here is how 40:00 stacks up against real results, as of November 2026:
| Group | 5K time | Per km | Per mile |
|---|---|---|---|
| Average US 5K finisher (2018) | 39:02 | 7:48 | 12:34 |
| Average US man (2018) | 35:22 | 7:04 | 11:23 |
| Average US woman (2018) | 41:21 | 8:16 | 13:19 |
| Median man, US 5K (50th percentile) | 31:18 | 6:16 | 10:04 |
| Median woman, US 5K (50th percentile) | 36:24 | 7:17 | 11:43 |
| Average UK parkrun | 29:30 | 5:54 | 9:30 |
| Average Australia parkrun | 33:25 | 6:41 | 10:45 |
| Average USA parkrun | 34:16 | 6:51 | 11:02 |
| You, at 40 minutes | 40:00 | 8:00 | 12:52 |
Sources: RunRepeat’s US 5K stats page (US race results, last updated November 2023; averages are from 2018; parkrun not included) and The Running Channel’s average parkrun times (as of August 2025, walkers included). The “faster than” shares are worked out by Run&Grow between the nearest rows of RunRepeat’s percentile table (men: 38:17 and 44:24; women: 36:24 and 40:14), so treat them as close estimates.
So what does it mean? In a typical US 5K, 40 minutes is close to the average finisher and a little behind the middle for women (the median woman runs 36:24). For men it is in the slower third, since the median man runs 31:18. At parkrun it is behind the average in all three countries, but parkrun counts walkers and every finisher gets the same time and the same welcome. For the full picture by age, see average 5K time by age and gender.
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Goal times near 40 minutes
Working toward 40, or ready to chase 35? These are the paces you need for each finish time:
| 5K time | Per km | Per mile | km/h | mph |
|---|---|---|---|---|
| 30:00 | 6:00 | 9:39 | 10.0 | 6.2 |
| 33:00 | 6:36 | 10:37 | 9.1 | 5.6 |
| 35:00 | 7:00 | 11:16 | 8.6 | 5.3 |
| 36:00 | 7:12 | 11:35 | 8.3 | 5.2 |
| 37:00 | 7:24 | 11:55 | 8.1 | 5.0 |
| 38:00 | 7:36 | 12:14 | 7.9 | 4.9 |
| 39:00 | 7:48 | 12:33 | 7.7 | 4.8 |
| 40:00 | 8:00 | 12:52 | 7.5 | 4.7 |
| 42:00 | 8:24 | 13:31 | 7.1 | 4.4 |
| 45:00 | 9:00 | 14:29 | 6.7 | 4.1 |
Every minute off your 5K is 12 seconds per km, or about 19 seconds per mile. The next goal for most people is a 35-minute 5K, which needs 7:00 per km. After that comes the 30-minute 5K.
Running vs walking a 5K in 40 minutes
A 40-minute 5K needs a steady 4.7 mph (7.5 km/h). That is a slow jog for most people, but a very fast walk. At a brisk 4 mph walk, a 5K takes 46:36. At an easy 3 mph walk, it takes 1:02:08. So if you are walking now, a run-walk mix is the simplest way to get under 40. The run-walk interval calculator works out the split for you.
What a 40-minute 5K predicts for longer races
| Distance | At the same pace | Predicted (Riegel) |
|---|---|---|
| 10K (6.2 mi) | 1:20:00 | 1:23:24 |
| Half marathon (13.1 mi) | 2:48:47 | 3:04:00 |
| Marathon (26.2 mi) | 5:37:34 | 6:23:39 |
Nobody holds their 5K pace for a marathon, so the last column uses the Riegel formula (time × (distance ratio)1.06), which adds a little time as races get longer. It assumes you have trained for that distance. Try your own numbers in the race time predictor.
How to get from 40 minutes to 35
- Run three times a week. Keep most runs easy, at a pace where you can still talk. If you still need walk breaks, the couch to 5K plan builds you up slowly.
- Add one slightly faster session. For example, 6 × 2 minutes at about 7:00 per km, with 2 minutes of easy jogging or walking between.
- Make one run a bit longer. Building up to 6 or 7 km makes 5 km feel easier.
- Start steady on race day. Use the split table above. Going out too fast in the first km usually costs you more later.
The hardest part is not one workout, it is showing up for months. That is where Run&Grow helps: every GPS run grows a plant in your garden, so a slow jog counts just as much as a fast one. It reads runs from Apple Health, so runs saved from your Apple Watch or another app count too. No public feed and no pace shaming.
Nearby times and tools
35-minute 5K · 30-minute 5K · How long to run 3 miles · 12-minute mile · Average mile time · Average 5K time · Pace calculator · Couch to 5K calculator
Frequently Asked Questions
- Is a 40 minute 5K good?
- Yes, it is a normal and respectable time, especially for a newer runner. A 40-minute 5K is 8:00 per km (12:52 per mile). That is only 0:58 behind the average US 5K finisher (39:02), 1:21 ahead of the average US woman (41:21), and faster than roughly 41% of women and 27% of men in US race results.
- What pace is a 40 minute 5K?
- 8:00 per kilometre, or 12:52 per mile. On a treadmill that is 7.5 km/h or about 4.7 mph. Each kilometre takes exactly eight minutes.
- Is a 40 minute 5K good for a beginner?
- Yes. It sits right in the middle of real race results: the average US 5K finisher runs 39:02 and the median woman runs 36:24. Finishing a first 5K in 40 minutes, with or without short walk breaks, is a good start.
- Is a 40 minute parkrun good?
- It is a bit behind the average, and that is fine. As of August 2025 the average parkrun time was 29:30 in the UK, 33:25 in Australia and 34:16 in the USA, with walkers included. parkrun is free and timed, and every week plenty of people finish in 40 minutes or more.
- Can you walk a 5K in 40 minutes?
- Only if you walk very fast. A 40-minute 5K needs 4.7 mph. At 4 mph a 5K takes 46:36, and at 3 mph it takes 1:02:08. For most people a gentle jog, or a run-walk mix, is the easier way to get under 40 minutes.
Timing your 5K with the free Workout app on iPhone or Apple Watch, or with Strava? See Strava vs Apple Fitness for what each one gives you for free and what the paid plans add.
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