Running Pace Calculator Formula

Understand the math behind the running pace calculator. Each variable explained with a worked example.

Formulas Used

Pace per Mile

pace_per_mile = pace

Pace per Kilometer

pace_per_km = pace / 1.60934

Speed

speed_mph = 60 / pace

Variables

VariableDescriptionDefault
time_minutesTotal Time(minutes)30
distance_milesDistance(miles)3.1
paceDerived value= time_minutes / distance_milescalculated

How It Works

Running Pace Formula

Pace (min/mile) = Total Time (min) / Distance (miles)

Speed (mph) = 60 / Pace

To convert to pace per km, divide pace per mile by 1.609.

Worked Example

A 5K (3.1 miles) run in 30 minutes.

time_minutes = 30distance_miles = 3.1
  1. 01Pace = 30 / 3.1 = 9.68 min/mile
  2. 02Pace per km = 9.68 / 1.609 = 6.01 min/km
  3. 03Speed = 60 / 9.68 = 6.2 mph

Frequently Asked Questions

What is a good running pace?

For beginners, 10-12 min/mile is common. Intermediate runners aim for 8-10 min/mile. Competitive runners often run 6-8 min/mile.

Learn More

Guide

Running Pace Calculator Guide: How to Find and Improve Your Pace

Learn how to calculate running pace, understand pace vs. speed, set race targets, and use pace training to improve your performance at every distance from 5K to marathon.

Ready to run the numbers?

Open Running Pace Calculator