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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.

: : h:m:s

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.