Enter your 5K time to see what it predicts for the 10K.
Your 5K time measures aerobic capacity and VO2max-level performance. This table shows what that capacity predicts for the 10K — a distance that demands more sustained threshold stamina but shares the same aerobic engine. Use this for goal-setting when you have a recent 5K result and are targeting a 10K.
Quick answer: A 22:00 5K runner (RPI 44.5) has equivalent 10K fitness of 45:40 (7:21/mi). Range in this table: 16:00 5K → 33:13 10K through 35:00 → 1:12:49.
| 5K Time | RPI | 10K Equivalent | Equiv Pace |
|---|---|---|---|
| 16:00 | 64.6 | 33:13 | 5:21/mi(3:19/km) |
| 17:00 | 60.2 | 35:16 | 5:41/mi(3:32/km) |
| 18:00 | 56.3 | 37:20 | 6:00/mi(3:44/km) |
| 19:00 | 52.9 | 39:23 | 6:20/mi(3:56/km) |
| 20:00 | 49.8 | 41:28 | 6:40/mi(4:09/km) |
| 21:00 | 47 | 43:35 | 7:01/mi(4:22/km) |
| 22:00 | 44.5 | 45:40 | 7:21/mi(4:34/km) |
| 24:00 | 40.2 | 49:48 | 8:01/mi(4:59/km) |
| 26:00 | 36.6 | 53:57 | 8:41/mi(5:24/km) |
| 28:00 | 33.5 | 58:09 | 9:21/mi(5:49/km) |
| 30:00 | 30.8 | 1:02:26 | 10:03/mi(6:15/km) |
| 35:00 | 25.6 | 1:12:49 | 11:43/mi(7:17/km) |
Computed via StrideIQ’s RPI equation. Predictions assume distance-specific training is in place.
The 5K → 10K prediction is reliable for runners who train for both distances with threshold work. The primary divergence: runners whose training emphasizes interval work (5K-specific) over tempo runs (10K-specific) may underperform their 10K equivalent by 1–3 minutes. Adding weekly threshold sessions closes this gap.
Accurate for runners who train both quality types (interval + threshold). The 5K and 10K share similar aerobic demands, but the 10K requires more sustained threshold stamina. Most consistently trained runners land within 2 minutes of the prediction.
A 20:00 5K (RPI 49.8) projects to a 41:28 10K at 6:40/mi. Adding threshold work to your training bridges any gap between your 5K and 10K fitness.
Add weekly threshold tempo runs (20–30 minutes at threshold pace) to 5K-focused interval training. This converts raw aerobic capacity into the sustained threshold stamina the 10K demands.