Speed Distance Time Calculator

The Speed Distance Time Calculator determines the unknown SDT value when two values are provided.

Choose a Calculation:

Speed = Distance / Time

Distance = Speed x Time

Time = Distance / Speed

Distance

inch ▾

Time

year ▾

Related

The speed-distance-time calculator helps you determine the speed, distance, or time for any moving object based on the other two values. It also allows unit conversions across different systems.

What is Speed?

“Speed is the ratio of distance traveled to the time taken.”

Speed is a scalar quantity. The SI unit is meters per second (m/s) with dimension M⁰L¹T⁻¹. Other units include inches/sec, miles/sec, feet/sec, kilometers/sec, centimeters/sec, and yards/sec.

Speed Formula:

Speed = Distance / Time or S = d / t

You can also use a velocity calculator to compute speed.

What is Distance?

“Distance is the total length between two points.”

Distance is scalar. The SI unit is meters with dimension L. This calculator can compute distance in inches, miles, feet, kilometers, centimeters, and yards.

Distance Formula:

Distance = Speed × Time or d = s × t

Use a distance calculator for instant results.

What is Time?

“Time is the period during which an action, process, or condition occurs.”

Time is scalar. The SI unit is seconds with dimension T. The calculator can also display time in years, months, days, hours, minutes, or hh:mm:ss format.