Pace Calculator
Calculate average running or swimming pace per kilometer or mile.
pace calculator Inputs
About Pace Calculator
The Running & Cycling Pace Calculator converts between race distance, running time, and split pace (min/km, min/mile), providing split time splits for 5K, 10K, Half Marathon (21.1 km), and Full Marathon (42.2 km) races.
How to Use Pace Calculator
Step 1
Select race distance preset or enter custom distance.
Step 2
Enter your target finish time.
Step 3
Review your required pace per km/mile, speed, and split checkpoint table.
Step 4
Click "Copy Pace Chart".
Practical Use Cases for Pace Calculator
Marathon & Half Marathon Race Pacing
Plan target kilometer and mile split times to achieve sub-4-hour marathon or sub-20-minute 5K personal records.
Treadmill & GPS Watch Workout Calibration
Convert treadmill speed (km/h or mph) to running pace per kilometer and mile.
Input & Output Examples
Calculating Pace for 10K in 50 Minutes
Distance: 10 km, Time: 50:00
Pace: 5:00 min/km (8:03 min/mile) | Speed: 12.00 km/h (7.46 mph)
Key Features & Performance
- ✓Calculates Pace, Time, or Distance dynamically based on two given inputs.
- ✓Race presets: 5K, 10K, Half Marathon, Marathon, and custom distances.
- ✓Supports Minutes per Kilometer (`min/km`) and Minutes per Mile (`min/mile`).
- ✓Generates kilometer-by-kilometer split time pacing charts.
- ✓100% Client-Side computation.
- ✓1-Click Copy pacing schedule.
Key Terminology & Definitions
Running Pace
The rate of activity expressed as the amount of time taken to cover a fixed unit of distance (such as minutes per kilometer or minutes per mile).
Negative Split
A racing strategy where the second half of a race is run faster than the first half.