What is the velocity formula?

Velocity (v) equals distance (d) divided by time (t): v = d/t. Rearranged: d = v × t and t = d/v.

What is the difference between speed and velocity?

Speed is a scalar (magnitude only), while velocity is a vector (magnitude + direction). For straight-line motion, the magnitude of velocity equals speed, so this calculator applies to both.

What units does this calculator support?

Distance: meters, kilometers, miles, feet, yards. Time: seconds, minutes, hours. Speed: m/s, km/h, mph, ft/s. Results are converted automatically.

Can I calculate average velocity?

Yes. If you enter total distance traveled and total elapsed time, the result is average velocity for that trip.

Why does velocity come out as a negative number?

This calculator treats all inputs as positive magnitudes. A negative result means you entered a negative number in one of the fields — check your inputs.

Velocity Calculator

Name: Velocity Calculator
Availability: InStock
Author: Nham Vu

Solve v = d/t for any variable — enter two known values to find the third.

Solve for

Distance

Time

Enter two values and press Calculate

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Summary

Solve v = d/t for any variable — enter two known values to find the third.

How it works

Select which variable you want to solve for: velocity, distance, or time.
Enter the two known values in the input fields.
Choose the appropriate units for each value.
The result updates instantly as you type.
Use the copy button to copy the result to your clipboard.

Use cases

Calculate average speed for a road trip given distance and travel time.
Find how long a journey will take at a given speed.
Determine how far an object travels at a known speed over a set time.
Convert and compare speeds across metric and imperial units.
Solve physics homework problems involving uniform motion.
Estimate running or cycling pace from distance and duration.

Frequently Asked Questions

Last updated: 2026-07-01 · Reviewed by Nham Vu