Pace Calculator for Running & Cycling (Min/Mile or Min/KM)

From total time and distance to a per-mile pace

6.2 miles (a 10K) covered in 52 minutes works out to a pace of 8:23 per mile and a speed of 7.15 mph. Pace and speed are two ways of expressing the same effort -- pace tells you minutes per unit distance (useful for runners pacing splits), while speed tells you distance per hour (more common in cycling).

The math behind 8:23/mile: 52 minutes / 6.2 miles = 8.387 minutes per mile, and the 0.387 fractional minutes converts to seconds (0.387 x 60 = 23.2), giving 8 minutes 23 seconds -- the same division, just presented in the mm:ss format runners actually think in in rather than a decimal.

Speed (7.15 mph) is the direct inverse relationship: 6.2 miles / (52/60 hours) = 6.2 / 0.867 = 7.15 mph -- pace and speed will always be mathematically consistent with each other for the same distance and time, just useful in different contexts.

What a single average pace figure doesn't capture

Clock time only. Elevation and splits are not modeled. This calculates one average pace across the entire distance and time entered -- it doesn't know whether the pace was even throughout or whether it varied significantly between a fast start and a slow finish (or vice versa), which is common in real runs and rides.

Elevation gain is completely invisible to this calculation -- a hilly 6.2 miles at 8:23/mile pace represents meaningfully more physical effort than a flat 6.2 miles at the identical pace, even though both produce the same number here.

For cycling specifically, speed is more commonly the reported metric than pace, while for running, pace per mile or kilometer is the more standard convention -- this tool reports both so you can use whichever framing matches your sport and personal habit.

Related fitness and training tools

For a swim-specific pace calculation (typically measured per 100 meters or yards rather than per mile), the Swimming Pace Calculator uses the equivalent logic for that different unit convention.

To plan training intensity based on heart rate rather than pace alone, the Target Heart Rate (Karvonen) Calculator is a complementary tool.

Frequently Asked Questions (FAQ)