Gentle jog · 4 mph
15:00 minutes per mile
Photo by Isaac Wendland on Unsplash
15:00 per mile equals 4 mph or 6.4 km/h on a treadmill, and 9:19 per kilometre. Held for a full 5K it gives 46:36. A 30-minute run at this pace covers 2 miles (3.22 km) — you would need about 17 more minutes to reach 5K.
15:00 and 15:30 per mile, converted
| Measure | 15:00 / mile | 15:30 / mile |
|---|---|---|
| Pace per kilometre | 9:19 | 9:38 |
| Treadmill speed | 4 mph | 3.9 mph |
| Treadmill speed (metric) | 6.4 km/h | 6.2 km/h |
| 5K (3.107 miles) | 46:36 | 48:09 |
| 10K | 1:33:12 | 1:36:19 |
| Distance in 20 minutes | 1.33 mi · 2.15 km | 1.29 mi · 2.08 km |
| Distance in 25 minutes | 1.67 mi · 2.68 km | 1.61 mi · 2.60 km |
| Distance in 28 minutes | 1.87 mi · 3.00 km | 1.81 mi · 2.91 km |
| Distance in 30 minutes | 2.00 mi · 3.22 km | 1.94 mi · 3.11 km |
| Minutes of running to reach 5K | 46:36 | 48:09 |
speed = 60 ÷ pace · distance = time ÷ pace · 1 mile = 1.609344 km
Distance covered in 30 minutes, by pace (mi)
Is 15:00 per mile too slow?
A 15-minute mile is a gentle jog, and you can call it running. At this pace a 5K takes 46:36. Thirty minutes covers exactly 2 miles, or 3.22 km. The plan uses 15:00 as one of its reference speeds, so a week 5 day 3 session (20 minutes running plus warm-up and cool-down walks) comes to about 1.89 miles. Any week of the plan suits this pace, and it is a good fit for the first weeks of continuous running.
On a treadmill
Set 4.0 mph, or 6.4 km/h. Raising it to 4.1 mph gives a 14:30 mile and a 5K of 45:03. Lowering it to 3.9 mph gives a 15:30 mile and a 5K of 48:09. At this end of the table each 0.1 mph changes your 5K by about one and a half minutes. A setting of 4.0 is easy to remember and easy to return to.
Run/walk intervals at 15:00
| Pattern | Average pace | 5K time | Distance in 30 min |
|---|---|---|---|
| Run all the way | 15:00 / mile | 46:36 | 2.00 mi |
| Run 4 min, walk 1 min | 15:31 / mile | 48:13 | 1.93 mi |
| Run 2 min, walk 1 min | 15:53 / mile | 49:21 | 1.89 mi |
| Run 1 min, walk 1 min | 16:22 / mile | 50:50 | 1.83 mi |
Running at 15:00 is only 3:00 per mile quicker than the 18:00 brisk walk this site uses for walk breaks, so mixing the two costs very little time. Even at one minute of each, a 5K takes 50:50 against 46:36 with no walking — a difference of 4:14. If a continuous run falls apart at this pace, a run/walk pattern gets you the same distance for a few minutes more.
What 15:00 looks like across the plan
| Session | Run minutes | Distance run | Whole session |
|---|---|---|---|
| Week 1 Day 3 | 8 | 0.53 mi | 1.76 mi |
| Week 3 Day 3 | 9 | 0.60 mi | 1.66 mi |
| Week 4 Day 3 | 16 | 1.07 mi | 1.93 mi |
| Week 5 Day 3 | 20 | 1.33 mi | 1.89 mi |
| Week 6 Day 3 | 25 | 1.67 mi | 2.22 mi |
| Week 7 Day 3 | 25 | 1.67 mi | 2.22 mi |
| Week 8 Day 3 | 28 | 1.87 mi | 2.42 mi |
| Week 9 Day 3 | 30 | 2.00 mi | 2.56 mi |
To finish 5K at 15:00, you would run 16.6 minutes past the 30-minute mark. That is about 47 minutes of running. Rather than speed up, add time: one longer run per week, 3 to 5 minutes longer than the last. Or finish week 9, then do your first 5K as 30 minutes of running followed by walk/run intervals to the end.
15:30 per mile: the half-minute step
15:30 per mile is 3.9 mph (6.2 km/h), 9:38 per km and a 48:09 5K; 30 minutes covers 1.94 miles.
Fifteen and a half minutes per mile is gentle, and it is fine. The numbers: a 5K in 48:09, and 1.94 miles, or 3.11 km, in a 30-minute run. That is just under two miles by the time week 9 ends. The pace keeps the effort low, which suits the step up from the repeats of week 4 to the longer continuous efforts of weeks 5 and 6. It also leaves room to speed up later if you want to.
Choose 3.9 mph, or 6.2 km/h. A press up to 4.0 mph matches a 15:00 mile and a 5K of 46:36. A press down to 3.8 mph matches a 16:00 mile and a 5K of 49:43. In both cases the 5K moves by roughly a minute and a half. Use a jogging stride even at this speed; a fast walk at 3.9 mph is a different exercise.
Frequently asked questions
Is a 15 minute mile considered running?
On this site, yes. It sits in the Gentle jog band, which runs from 15:00 to 16:30 per mile, and it is faster than the site's walking reference of around 17 to 20 minutes per mile. If both feet leave the ground with each stride, you are running, whatever the clock says.
How long is a 5K at a 15 minute mile pace?
46 minutes and 36 seconds. A 5K is 3.11 miles, and at 15 minutes each that adds up to just over 46 and a half minutes. Per kilometer the pace is 9:19. In a 30-minute run at this speed you cover 2 miles, or 3.22 km.
Is a 15:30 mile slow for running?
It is gentle, but it is still running. On this site's table it is in the Gentle jog band. At 15:30 your 5K time is 48:09, and you would finish week 9's 30-minute runs having covered 3.11 km. The plan does not judge pace; it only asks you to run for the set minutes.
Data sources
Data as of October 4, 2026
- FirstFiveK calculations (distance ÷ time)Own work · 2026-10
- CDC — Measuring Physical Activity Intensity (talk test)Public domain (US federal government) · 2026-10
- HHS — Physical Activity Guidelines for Americans, 2nd editionPublic domain (US federal government) · 2026-10
- How ranks and averages are calculated