🏃 Running Pace Calculator

What is Running Pace Calculator?

The Running Pace Calculator turns any completed run into your average pace and speed, then projects that pace across standard race distances. Enter the distance you covered and your time, choose kilometers or miles, and instantly see your pace per kilometer or mile plus projected 5K, 10K, half-marathon and marathon finish times. It is an easy way to set realistic race goals and to check whether you are on track during training. All math happens locally in your browser.

How to Use Running Pace Calculator

1. Enter the distance you ran and choose km or miles
2. Enter the finish time in minutes and seconds
3. Read your average pace, speed and projected race times

Why Use Our Running Pace Calculator?

• Instant pace and speed from a distance and time
• Kilometer or mile unit switching
• Projected 5K, 10K, half-marathon and marathon times
• No account, no data upload — fully offline-capable

Common Use Cases

• Setting a realistic goal pace for an upcoming race
• Checking training runs to see pace trends
• Predicting a half or full marathon time from a shorter effort

Frequently Asked Questions

• How is pace calculated?▾
  Pace is your total time in seconds divided by the distance you entered. Multiply that pace by a target race distance to project a finish time at the same effort.
• Can I switch between kilometers and miles?▾
  Yes. The unit selector converts your distance (1 mile = 1.609 km) and reports pace and speed in the matching unit.
• Why do the race projections matter?▾
  They convert the pace from one run into realistic goals for standard race distances, which helps you set targets and pace plan for race day.