Running Pace Converter
Convert between min/km, min/mi, km/h, and mph. Includes splits for trail distances up to 100km.
A pace converter turns running pace between min/km, min/mile, km/h, and mph, and computes pace from any distance and time. TrailMath's free pace converter is built for trail runners - it handles ultra distances and slow climbing paces without rounding errors.
About pace and speed units
min/km is the standard pace unit across Europe and most GPS watches. It measures how long it takes to cover one kilometre - lower is faster. Coaches working in metric systems use min/km for workout prescriptions and race planning.
min/mi is common in the US and UK. Because a mile is 1.609 km, a pace of 5:00/km equals roughly 8:03/min/mi. Many trail segments on platforms like Strava display speed as km/h or mph for segment comparison, which is why this converter includes all four units.
Trail context: Flat pace is a useful baseline, but on technical trail with elevation, expect your actual pace to be 15-40% slower. A runner who does 5:00/km on a flat road might run 6:30-7:00/km on moderate trail. The splits table here uses flat pace - use the GAP Calculator to adjust for gradient.
Want a full training plan built on this science?
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