Distance, speed & time calculator
Solve for any one variable in distance = speed × time. Enter the other two quantities in the stated SI units.
Result for the values shown.
Calculations run in your browser.
What to enter
| Input | Meaning and units |
|---|---|
| Solve for | Choose the applicable option: Distance (m), Speed (m/s), Time (s). |
| Distance (m) | Enter distance in m; use the same basis as the other measurements. |
| Speed (m/s) | Enter speed in m/s; use the same basis as the other measurements. |
| Time (s) | Enter time in s; use the same basis as the other measurements. |
Understanding your result
Read Solved value in the units and model stated on this page. The formula distance = speed × time defines the relationship; measurement accuracy and model applicability are separate from numerical precision.
Common mistakes
- Mixing input units or changing the physical meaning of a variable without changing the model.
Check your calculation
- Use the worked example as a known reference case, then change one input at a time and check the direction and units of the response.
Calculation checks, sources and review limits
How far will I travel, how fast am I moving, or how long will it take?
Choose the unknown quantity and enter the other two. The relationship assumes the supplied speed represents the interval being calculated.
Common uses
- Find travel time from distance and speed.
- Find distance from speed and duration.
How it works
Choose the unknown variable and supply the other two values. The unknown field is ignored. distance = speed × time. Division by zero is not defined. These relationships assume consistent quantities and units, without additional physical effects.
Worked example
Speed = 10 and Time = 5 gives distance = 50.