Running Pace & Split Calculator

Pace per km/mi, speed & predicted finish times for 5K to marathon.

Distance (km)

Time — Minutes

Time — Seconds

Times 5K, 10K, half & full marathon are extrapolated from this pace.

Pace per Kilometer

6:00 /km

—

Pace per Mile

9:39

Speed

10.0 km/h

Speed (mph)

6.2 mph

Predicted Race Times

5K—

10K—

Half Marathon—

Marathon—

Steady, consistent pacing beats positive splits — aim for even or slightly negative splits on race day.

Did you know?

Eliud Kipchoge ran the first sub-2-hour marathon in 2019 at 1:59:40 — an average pace of just 2:50 per kilometre.

Formula

Pace = Time / Distance · Race Time = Distance × Pace

What pace should a beginner target?

Most beginners run 7:00–9:00 min/km. Consistency matters more than speed — build mileage first, then pace.