Pace Calculator
Convert distance and time into pace, speed, and expected finish time for running or walking events.
Workout details
Choose calculation
Pace:
Speed:
Estimated finish time:
Split pace:
Results update based on the selected calculation mode. Use pace to estimate target time or time to calculate average pace.
Pace vs. speed
Pace expresses effort as time per unit distance (minutes per km or mile) — the standard way runners talk about training and race effort. Speed is the inverse, expressed as distance per unit time (km/h or mph) — more common in cycling. This calculator converts freely between the two, and can also project a finish time for a target distance once you know your pace.
Frequently asked questions
How do I use this to plan a race? Enter your goal distance and a target pace (from recent training runs) to see your estimated finish time — or enter a target finish time to find the pace per km/mile you'd need to hold.
Why does my pace feel different on a treadmill vs. outdoors? Treadmill pace and outdoor pace often feel different due to the lack of wind resistance and the belt assisting leg turnover — many runners find treadmill pace feels easier than the equivalent outdoor pace.
Should I aim for even pacing across a whole race? Even or slightly negative splits (running the second half slightly faster) are generally considered a more effective race strategy than starting fast and slowing down, since starting too fast burns glycogen reserves quickly.