Free Running Pace Calculator – Pace, Speed & Time

Calculate Running Pace, Speed, Time, or Distance

The Helperzy Running Pace Calculator helps you plan runs and races by computing the relationships between distance, time, pace, and speed. Enter any two and it calculates the others, showing pace in both min/km and min/mile. Knowing your target pace is key to training: it tells you how fast each kilometer or mile should take to finish a race in your goal time. The calculator also converts pace to speed (km/h or mph), which is useful for treadmill settings. Runners use it to set goal paces for 5K, 10K, half-marathon, and marathon training, to calculate predicted finish times, and to convert between pace and speed for different training contexts. It is fast, handles both metric and imperial, and updates instantly. Everything runs in your browser, so it is instant, free, and works offline once loaded.

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