Pace Converter

Converting pace between min/km and min/mi seems trivial — just multiply or divide by 1.609 — but understanding the physiological implications matters more than the arithmetic.

Why both units exist: Most of the world trains in min/km; the US and UK typically use min/mi. GPS watches default to your region setting, but race pace charts, coaching plans, and online communities mix both. Converting manually leads to errors — rounding 4:30/km to 7:14/mi is easy; remembering that 7:30/mi = 4:39/km is not.

Speed vs. pace: Speed (km/h or mph) is linear — a 1 km/h increase is the same change at any speed. Pace (min/km) is hyperbolic — going from 6:00/km to 5:30/km (a 0.5 km/h gain at slow speeds) is much easier than going from 4:00/km to 3:38/km (the same 0.5 km/h gain at fast speeds). This is why "negative splits" are harder than they sound: your pace improvement represents an ever-growing speed increase.

Race-time equivalents at the same pace are a starting point, not a promise. The pace you can hold for 5K is not the same pace you can hold for a marathon — the fatigue-resistance assumption here is zero. Use the race-time equivalents to understand the magnitude of each distance, not as a training target.

What Baseline does differently: Rather than assuming constant pace across distances, we track your actual pace-decay curve — how your pace degrades as distance increases — from your real activities. That's your personal fatigue profile, and it's more useful than any generic conversion table.