Pace Calculator - Calculator See


Pace Calculator

Calculate running pace, race split times, and speed for 5K, 10K, Half Marathon, and Full Marathon distances.

Calculator Inputs

Select distance or enter custom miles.
mi
Total distance in miles.
hrs
Hours.
min
Minutes.
sec
Seconds.

Calculated Results

Running Pace
8:03 / mile (5:00 / km)
Speed in Miles Per Hour 7.45 mph
Speed in Kilometers Per Hour 12.00 km/h
5K Estimated Split 25:00
Values calculate live as you adjust inputs.

About Pace Calculator

A pace calculator computes time required to cover a unit distance (minutes per mile or kilometer), helping runners and triathletes pace races and evaluate training tempo.

What is Pace Calculator?

A pace calculator computes time required to cover a unit distance (minutes per mile or kilometer), helping runners and triathletes pace races and evaluate training tempo.

How to Use This Calculator

  1. Select standard race distance (5K, 10K, Half, Full) or enter custom mileage.
  2. Input your total finish time in hours, minutes, and seconds.
  3. Read your required per-mile and per-kilometer splits.

The Mathematical Formula & Variables

Pace (min/mi) = Total Time in Minutes / Total Distance in Miles; Speed (mph) = 60 / Pace

Variables Definition

Symbol / Variable Name Description
Pace Split Rate Minutes and seconds elapsed per mile or kilometer.

Step-by-Step Worked Example

Scenario: Running a 10K (6.214 miles) in exactly 50 minutes and 00 seconds.

  1. Total time = 50.0 minutes.
  2. Pace per mile = 50 / 6.2137 = 8.046 minutes = 8 minutes and 3 seconds per mile.
  3. Speed = 60 / 8.046 = 7.46 mph.

Result: Pace = 8:03 per mile (5:00 per km)

Frequently Asked Questions

How many miles are in a 5K and 10K?

A 5K race is 3.10686 miles. A 10K race is 6.21371 miles. A half marathon is 13.1094 miles, and a full marathon is 26.2188 miles.