Pace Calculator
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Training Paces

Estimate your easy, marathon, threshold/tempo, and interval training paces from a recent 5K time.

Recent 5KEasy / recoveryMarathonThreshold / tempoInterval (5K)
18:00 5K7:32/mi6:40/mi6:08/mi5:48/mi
20:00 5K8:22/mi7:24/mi6:49/mi6:26/mi
22:30 5K9:25/mi8:20/mi7:41/mi7:15/mi
25:00 5K10:28/mi9:15/mi8:32/mi8:03/mi
30:00 5K12:33/mi11:06/mi10:14/mi9:39/mi

Estimates from your 5K pace — a starting point, not a prescription. Individual training paces vary.

Most of your running should not be at race pace. This table estimates the main training zones — easy/recovery, marathon, threshold/tempo, and interval — from a recent 5K time, the way popular systems like those of Jack Daniels and others do.

Easy running builds aerobic fitness and should feel conversational; tempo and threshold work raises the pace you can sustain; intervals sharpen your top-end speed. For the easy end of the range specifically, see the Zone 2 pace page; for the fast end, the VO2 max pace page.

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Frequently asked questions

How fast should my easy runs be?

Easy pace is roughly 1.5–2 minutes per mile slower than your 5K pace — slow enough to hold a conversation. The table gives an estimate from your recent 5K.

What is threshold or tempo pace?

Roughly the pace you could race for about an hour — "comfortably hard". It's a key session for raising the speed you can sustain over 10K to half-marathon distances.

Are these training paces exact?

No — they're estimates from a single 5K time and a good starting point. Adjust based on how efforts actually feel, the terrain, and the weather.