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Running Pace Calculator

Calculate your running pace per km or mile. Get splits for any distance from 5K to marathon. Plan your race strategy.

: :
hours : minutes : seconds

Understanding Running Pace

Pace is how long it takes to cover one unit of distance (km or mile). It's the inverse of speed and preferred by runners.

Common Race Distances

  • 5K: 3.1 miles - beginner-friendly distance
  • 10K: 6.2 miles - double the 5K
  • Half Marathon: 13.1 miles / 21.1 km
  • Marathon: 26.2 miles / 42.2 km

Race Pace Strategies

  • Even splits: Maintain the same pace throughout
  • Negative splits: Start slower, finish faster (recommended)
  • Positive splits: Start fast, slow down (usually unintentional)

Training by Pace

  • Easy runs: 1-2 min/mile slower than race pace
  • Tempo runs: 15-30 seconds slower than race pace
  • Intervals: 30-60 seconds faster than race pace
  • Long runs: Similar to easy pace, focus on time on feet

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Frequently Asked Questions

How is running pace calculated?

Pace = Total Time ÷ Distance. A 25-minute 5K is 5:00/km or 8:02/mile pace.

What is a good running pace?

Beginner: 10-12 min/mile, Intermediate: 8-10 min/mile, Advanced: 6-8 min/mile, Elite: under 5 min/mile.

What is negative splitting?

Running the second half faster than the first. It's an effective race strategy that prevents early burnout.

How do I run faster?

Interval training, tempo runs, strength training, and consistent mileage all improve speed over time.