Pace vs speed: the conversion that trips up every runner
Minutes per mile and miles per hour move in opposite directions. Why pace feels upside down, and how to switch between the two without stopping mid-run.
5 min read · Reviewed August 2026
Runners think in pace: minutes per mile, or minutes per kilometer. Treadmills, bikes, and cars think in speed: miles per hour, kilometers per hour. The two describe the same motion, but they’re inverses of each other, which is why moving between them feels weirdly backwards.
Why the numbers feel upside down
Speed is distance over time, so a bigger number means faster. Pace is time over distance, so a smaller number means faster. That’s the whole source of the confusion. A 6:00 mile is quicker than an 8:00 mile, but 10 mph is quicker than 7 mph. Same effort, and yet ‘good’ points in opposite directions depending on which unit you’re reading.
The actual conversions
They’re built on the same reciprocal. To turn mph into minutes per mile, divide 60 by the speed: 10 mph is 60 divided by 10, or a 6:00 mile. To go back, divide 60 by the pace in minutes. The kilometer versions work the same way with km/h. And to swap a per-mile pace for a per-kilometer pace, divide by 1.609, since a mile is that many kilometers.
The math that matters on race day
The one calculation worth having is your finish time, which is just pace times distance. A 9:00 per mile marathon over 26.2 miles works out to about 3 hours and 56 minutes. Doing 60-divided-by-something in your head at mile 20 is nobody’s idea of fun, so our Time and Speed categories handle the reciprocal for you and let you check a goal pace before you ever lace up.