RUNNER TOOLS

Tools & Calculators

Free tools to help you convert distances, calculate pace, and predict race times.

NEW · ENTRIES OPEN 5 AUGUST

Two Oceans 2027 Qualifying Calculator

Enter your marathon or ultra time and instantly check whether you qualify for the 2027 Two Oceans Ultra — plus every ballot date you need.

Miles to KM

Instant conversion for race planning.

KM to Miles

Use this for quick race distance checks.

Pace Calculator

Enter distance and time to see your pace.

Race Time Predictor

Enter a known race result to see predictions.

Put the numbers to work

Got your pace? Pick a race.

Numbers are only half the story — find an upcoming race to point them at, or learn what your easy pace should feel like.

Browse racesRead the pace guide