Mile to 5K Conversion Calculator
Making the jump from Mile to 5K means shifting from VO2max and kick finishing to threshold and tempo sessions. Enter your Mile time and get a data-backed 5K target that accounts for how aerobic demands increase over the longer distance.
Quick answer: a 5:16 mile converts to about 18:18 for the 5K (typical range 17:31 to 19:26).
Mile to 5K conversion table
Estimates only – individual results vary with training, conditions and event experience.
| Mile time | Predicted 5K | Range |
|---|---|---|
| 4:00 | 13:54 | 13:18–14:45 |
| 4:10 | 14:29 | 13:51–15:22 |
| 4:20 | 15:04 | 14:25–15:59 |
| 4:30 | 15:38 | 14:58–16:36 |
| 4:40 | 16:13 | 15:31–17:13 |
| 4:50 | 16:48 | 16:04–17:50 |
| 5:00 | 17:23 | 16:38–18:27 |
| 5:10 | 17:57 | 17:11–19:04 |
| 5:20 | 18:32 | 17:44–19:41 |
| 5:30 | 19:07 | 18:17–20:18 |
| 5:40 | 19:42 | 18:51–20:54 |
| 5:50 | 20:17 | 19:24–21:31 |
| 6:00 | 20:51 | 19:57–22:08 |
| 6:10 | 21:26 | 20:31–22:45 |
| 6:20 | 22:01 | 21:04–23:22 |
| 6:30 | 22:36 | 21:37–23:59 |
| 6:40 | 23:10 | 22:10–24:36 |
| 6:50 | 23:45 | 22:44–25:13 |
| 7:00 | 24:20 | 23:17–25:50 |
How it works
The Mile→5K conversion blends Riegel's power-law scaling with VDOT oxygen-cost validation. The 3.1x distance gap means the model must account for shifting energy systems from aerobic-dominant with anaerobic surge to aerobic at 95-100% VO2max. Where both distances fall within aerobic range, critical speed modeling adds a third reference point. The result is a predicted time with a confidence range.
Training advice
For accuracy, enter a recent all-out Mile effort from the past 6-8 weeks. If training specifically for 5K, incorporate threshold and tempo sessions into your weekly schedule. The prediction shows current fitness potential; targeted training can improve it.
Frequently asked questions
How accurate is a Mile to 5K prediction?
With a recent all-out Mile time, predictions are typically within 2-5% of actual 5K performance. Accuracy improves when the Mile effort is from the past 6-8 weeks under normal conditions.
What training should I do to reach my predicted 5K time?
Focus on threshold and tempo sessions. Your Mile fitness provides the speed foundation — building aerobic at 95-100% VO2max capacity through progressive training is the key to hitting the target.
Can I use an old Mile time for this prediction?
Recent times (within 6-8 weeks) give the most reliable predictions. Older results may not reflect your current fitness, especially if your training has changed significantly.