Speed Calculator
Calculate speed, distance, or time — solve any two to find the third.
Speed, Distance, Time
Fill in any two fields and leave the one you want to calculate blank.
What is the Speed Calculator?
The Speed Calculator is a basic physics tool that solves for velocity. Whether you are tracking a road trip, calculating the speed of a pitched baseball, or solving a homework problem, this tool provides instant kinematic answers.
How It Works (Formula)
Speed (Velocity) is defined mathematically as the total distance traveled divided by the total time it took to travel that distance. The calculator can algebraically rearrange this formula to solve for Time or Distance as well.
$$ v = \frac{d}{t} $$
Velocity equals distance over time.
How to Use It
Select which variable you want to solve for (Speed, Distance, or Time). Enter the two known variables, and the tool will instantly output the missing value. You can use any combination of units, like mph, km/h, or meters per second.