# Speed Distance Time Calculator

## Calculator Use

Calculate speed, distance or time using the formula d = st, distance equals speed times time. The Speed Distance Time Calculator can solve for the unknown *sdt* value given two known values.

To solve for distance use the formula for distance d = st, or distance equals speed times time.

*distance = speed x time*

Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour. If rate *r* is the same as speed *s*, r = s = d/t. You can use the equivalent formula d = rt which means distance equals rate times time.

*distance = rate x time*

To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

*speed = distance/time*

To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.

*time = distance/speed*

## Related Calculators

For physics calculations with speed, displacement and velocity use our Displacement Calculator to solve for displacement *s*, average velocity *v* or time *t*.

**Cite this content, page or calculator as:**

Furey, Edward "Speed Distance Time Calculator"; from *http://www.calculatorsoup.com* - Online Calculator Resource.