H HealthFitTools Back Home
Cardio Calculators Tool

Running Pace Calculator

Convert a run time and distance into pace per kilometre and mile, plus same-pace finish times for 5K, 10K, half marathon, and marathon.

Educational & Scientific Tool: Outputs use equations or simplified planning models and are estimates for educational use. This tool is not a substitute for clinical medical evaluation, diagnosis, or personalized medical advice. See full Medical Disclaimer.

Parameters

km
h
m
s
Calculated Results

Share Results copies a link containing your entered values. Share only with people you want to see them.

Formula & Math

How this calculation works under the hood:

Pace = Total Time / Distance (expressed as time per km or mile).

Worked Example

Real-world scenario walk-through:

Running 5km in 25 minutes: Pace = 25 / 5 = 5:00 minutes per kilometer.

Input Reference

Input Default Bounds Role
Select Distance
Selection
5k Method-dependent Chooses the method or activity tier.
Custom Distance
Numeric field
5 / 3.1 0.1 to 200 km / 0.1 to 125 miles Feeds the core formula and result classification.
Hours
Numeric field
0 0 to 24 h Feeds the core formula and result classification.
Minutes
Numeric field
25 0 to 59 m Feeds the core formula and result classification.
Seconds
Numeric field
0 0 to 59 s Feeds the core formula and result classification.

Understanding Running Pace Calculator

Use this tool to convert a completed run into pace per kilometre and mile, or compare a goal time with the pace needed. Choose a standard race distance, or enter a custom distance in the unit shown.

Common pace conversions

Pace per kmPace per mile5K time10K time
4:006:2620:0040:00
5:008:0325:0050:00
6:009:3930:0060:00
7:0011:1635:0070:00

Race planning limitations

Projected finish times assume you maintain the same pace over the full distance. They are arithmetic conversions, not predictions of fitness or race performance. Terrain, weather, fatigue, and breaks can change your actual time. Displayed times round to the nearest second.

FAQs

What is a good 5k pace? +

A 30-minute 5K requires 6:00 per kilometre, or about 9:39 per mile. Whether a pace suits you depends on your experience, goals, and course; it is not a health classification.

How do I calculate mile vs km pace? +

1 mile = 1.609344 kilometres. Multiply seconds per kilometre by 1.609344 to get seconds per mile; divide to convert back.