Running Pace, Speed & Split Calculator
Easily convert between pace and speed. Enter any two variables among Time, Distance, and Pace to solve for the third. View intermediate kilometer and mile split tables for all standard road race distances.
How to Use Running Pace & Race Time Calculator
Select Known Inputs
Choose whether you want to calculate Pace, Time, or Distance.
Enter Numbers
Input your target distance (or select a preset like 5K, 10K, 21.1K Half, 42.2K Marathon) and desired finish time.
View Splits
Examine your required minute-per-mile or minute-per-km pace and split milestones.
About Running Pace & Race Time Calculator
Pace is the inverse of speed, measuring the time required to cover a fixed unit of distance (min/km or min/mile). A runner maintaining an 8:00 min/mile pace is traveling at 7.5 miles per hour (60 / 8.0 = 7.5 mph).
Key Features
- Standard race distance presets: 1 Mile, 5K, 10K, Half Marathon (13.1 mi), Marathon (26.2 mi)
- Instant conversion between Minutes/Mile, Minutes/KM, MPH, and KM/H
- Mile-by-mile and kilometer-by-kilometer split table generation
- Negative split pacing estimations
- Mobile-friendly interface for training on track or treadmill
Frequently Asked Questions
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