Pace Running Calculator

Instant pace calculator: enter two of distance, time or pace and get the third. Splits, race time predictor, saved goals, metric or imperial.

Pace — a simple, fast running pace calculator

Distance, time and pace are linked: change any two, and Pace instantly works out the third. Set a target for your next race, or check your goal pace for a 5K, 10K, half or full marathon, in seconds.

THE TRIANGLE THAT SOLVES ITSELF • Distance + time → your pace • Distance + pace → your finish time • Time + pace → the distance covered • Quick presets: 5K, 10K, 20K, half marathon, marathon, plus fine adjustments

SPLITS • A km-by-km (or mile-by-mile) breakdown of your race • Plan your race strategy ahead of time: negative splits, even pacing…

RACE TIME PREDICTOR • Estimate your finish times for 5K, 10K, half and full marathon from your current effort • Built on a proven prediction method (the Riegel formula) • Set a realistic race goal before you toe the line

SAVED GOALS • Save several race scenarios (10K in 45 min, half in 1h50…) • Reload them in one tap to compare your race plans

YOUR WAY • Metric (km) or imperial (miles, yards) • English or French

Free, simple, no account required.