This pace calculator helps you determine your running pace based on distance and time. It's useful for training, race planning, and tracking your running performance.

使い方：

• Enter the distance you ran or plan to run
• Select the appropriate unit (mile, kilometer, or common race distances)
• Input your time in hours, minutes, and seconds
• Click calculate to see your pace and related metrics

Pace Types:

• Minutes per mile/km: Time it takes to complete one unit of distance
• Speed (mph/kmh): Distance covered per hour
• Race pace predictions: Estimated times for common race distances