Pace Calculator

There is no single answer, and anyone selling you one is guessing. As a rough map: a comfortable conversational pace for a regular recreational runner sits somewhere around 6:00–7:00 min/km (about 9:40–11:15 min/mile), a decent club runner races 5K nearer 4:00 min/km, and world records are close to 2:50 min/km. The more useful number is your own easy pace, which should feel like you could hold a conversation — most improvement comes from running most of your runs slower than feels satisfying.

Divide 60 by the pace in minutes. A 5:00 min/km pace is 60 ÷ 5 = 12 km/h; a 6:30 pace is 60 ÷ 6.5 = 9.2 km/h. It works the same way for miles and mph. Both conversions are shown here whenever you enter a pace, because treadmills are almost always set in speed while watches are set in pace, and doing this conversion while already running is unpleasant.

The split table answers exactly that — it takes whatever pace is on screen and projects it across 5K, 10K, ten miles, half marathon and marathon. Treat it as arithmetic rather than a prediction. Half marathon pace is the projection most people find useful, since it is close enough to a long run to be believable. Almost nobody holds their 5K pace for a marathon, and most people slow by several percent in the second half, so a projection from a short fast run will flatter you. Projecting from a long steady run is much closer to the truth.

Both, always, side by side. You pick which unit to enter the distance in, and both paces come back — a mile is 1.609 kilometres, so a min/mile figure is always the larger number. Common race distances are given as buttons so you do not have to remember that a marathon is 42.195 km or that a half is 13.109 miles.

Yes. Leave the distance empty and give a time and a pace, and it fills in how far that gets you — the same arithmetic run the other way. That is the version people want when planning a session by duration rather than distance: forty minutes at an easy pace is a distance, not the other way round.