Three modes
Find pace (distance + time), finish time (distance + pace), or distance (pace + time).
Fitness calculators
Running Pace Calculator
Find your pace, finish time, or distance - km or miles.
Complete guide
How to use Running Pace Calculator
Choose what you want to find - pace, time, or distance - then enter the two values you know. The calculator returns your pace per km/mile and your average speed, or the missing time or distance.
Enter times as h:mm:ss (e.g. 0:50:00) and pace as min:sec (e.g. 5:00). Switch between kilometers and miles at any time.
Pace and speed
Pace mode returns both your time per unit (e.g. 5:00/km) and your average speed in km/h or mph.
km or miles
Switch the distance unit and the pace output follows - handy for race plans in either system.
Answers
Running Pace Calculator FAQs
What is running pace?
The time to run one unit of distance, e.g. 5:30 per km. It is the inverse of speed.
How do I convert km pace to mile pace?
Multiply km pace (in seconds) by 1.60934. 5:00/km ≈ 8:03/mile.
What is a good beginner pace?
Most beginners run 7-9 min/km (11-14 min/mile). A conversational pace is ideal.
How do I find my 5K time?
Use ‘Find time’, enter 5 km and your expected pace, and the calculator returns your finish time.
Related tools
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Calculation method and limitations
Formula or method
Pace = elapsed time / distance; time = pace x distance; distance = time / pace. One mile equals 1.609344 kilometers.
Worked example
A 10 km run in 50 minutes has a pace of 5:00/km and average speed of 12 km/h. The equivalent mile pace is approximately 8:03/mile.
Assumptions and limitations
Assumes constant average pace. Terrain, stops, altitude and fatigue affect actual finish time. This is not a performance guarantee.
Important: For general education only, not medical advice. Health decisions should be discussed with a qualified clinician.
Editorial note: Review the input definitions, units and assumptions before relying on results. Source: FormatNest running calculator methodology.