Pace Calculator: Run & Splits

Know your numbers before the gun goes off. Run Pace turns pace math into one clean tool: solve any pace problem, predict race times, and print-perfect split tables — all offline. PACE CALCULATOR • Enter any two of pace, time and distance — the third is solved instantly • Quick presets for 5K, 10K, half marathon and marathon • Works in min/km, min/mi, km/h and mph, with one-tap unit switching RACE TIME PREDICTOR • Ran a recent race? Predict your time at any other distance using the proven Riegel formula • See how a 5K result translates to a 10K, half or full marathon • A realistic target beats a hopeful guess SPLIT TABLES • Generate per-kilometer or per-mile splits for your goal time • Even pacing or a negative-split ramp — the table adds up to your goal exactly • Glance-friendly layout you can screenshot and take to the start line TRAINING PACE ZONES • Get easy, tempo, threshold and interval paces derived from your race pace • Train at the right effort instead of racing every workout PRIVATE & OFFLINE • 100% offline — no account, no GPS, no tracking • Instant answers, airplane-mode friendly From your first 5K to a marathon PR: calculate it, plan it, run it.