Running Pace Calculator
Input running distance and time to calculate pace and speed. Supports kilometers/miles switching with automatic predicted times for various distances.
Input Data
Pace Formula: Pace (min/unit) = Total Time (minutes) / Distance (units)
Speed Formula: Speed (unit/h) = Distance (units) / Total Time (hours)
Prediction Note: Predicted times are based on current pace. Actual race results may vary due to training condition, course difficulty, weather, and other factors.
Common Running Distances: 5K = 5 kilometers | 10K = 10 kilometers | Half Marathon = 21.0975 kilometers | Marathon = 42.195 kilometers