What's a competitive 5K time?
Sub-25 minutes is strong recreationally, sub-20 is regionally competitive, sub-18 is state/national level. A 25-minute 5K is 8:03/mile pace.
Health Fitness
5K Pace Calculator
Calculate 5k pace with your details.
Personalized estimate
Use realistic inputs for the most useful results.
What this calculator does
A 5K pace calculator takes your race time and calculates pace per kilometer or mile, along with speed. Your 5K pace is an excellent benchmark for setting training targets and measuring fitness.
How it works
Enter your 5K time. The calculator divides 5K distance by time for pace and speed metrics in both metric and imperial units.
Formula
Pace per km = Time (min) ÷ 5. Pace per mile = Time (min) ÷ 3.1. Speed km/h = 5 ÷ (Time ÷ 60). Speed mph = km/h × 0.621.
Tips for using this calculator
- Run 5K at or slightly faster than target race pace in final 2-3 weeks
- Easy runs should be 60-90 seconds per km slower than 5K pace
- Include strides (80-100m sprints) 2-3 times weekly
- Focus on relaxed, efficient running form
- Practice even pacing or negative splits
Frequently asked questions
How much faster is 5K pace vs marathon pace?
If you run 5K at 5:00/km, expect marathon pace around 6:00/km or slower. Most marathoners run 1:30-2:30/km slower than 5K pace.
Can I improve in 4 weeks?
Yes, but modestly—expect 30-60 seconds improvement. For dramatic gains, plan 8-12 weeks of consistent training.