Welcome to the Running Calculator! Here's how to use it:

• Enter any two of Distance, Time, or Pace to calculate the third.
• Use the shortcut buttons for popular distances.
• Time can be entered as HH:MM:SS, MM:SS, or with units (e.g., 1h30m).
• Pace can be entered as MM:SS or with units (e.g., 5m30s per km).
• The pace gauge shows how your pace compares to world-class and average runners.