Speed, Distance & Time Calculator
Calculate speed, distance, or time using the formula: Speed = Distance / Time.
hours
minutes
seconds
Quick Reference
Speed = Distance / Time
How fast something is moving
Distance = Speed x Time
How far something travels
Time = Distance / Speed
How long the journey takes
About This Calculator
This calculator uses the fundamental relationship between speed, distance, and time (v = d/t). Enter any two values to calculate the third. Supports multiple units including mph, km/h, m/s, knots for speed, and miles, kilometers, meters, feet, and nautical miles for distance.