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Calculate running pace, speed, and finish time. See predicted splits for 5K, 10K, half marathon, and marathon.
Calculate your running pace, speed, and predicted finish times instantly — enter any two of distance, time, or pace and get the third. See your pace per mile and per kilometer, speed in mph and kph, and predicted finish times for popular race distances (5K, 10K, half marathon, marathon). Perfect for training planning, race goals, and treadmill conversions. Everything runs in your browser.
Pace = Time / Distance. If you run 3 miles in 24 minutes, your pace is 8:00 per mile (24/3 = 8 minutes per mile). Pace is expressed as minutes:seconds per mile or per kilometer.
It depends on your fitness level. For beginners, 10-12 min/mile is normal. Intermediate runners average 8-10 min/mile. Advanced runners hit 6-8 min/mile. Elite marathoners run under 5 min/mile. Any pace that keeps you running consistently is a good pace.
Speed (mph) = 60 / pace (min/mile). For example, an 8:00/mile pace = 60/8 = 7.5 mph. For km: Speed (kph) = 60 / pace (min/km).
The predictions assume you maintain the same pace for the entire distance. In reality, pace naturally slows over longer distances. Add 5-10% to the predicted time for races longer than your training distance for a more realistic estimate.