Velocity Calculator

Velocity Calculator is here to help you solve your velocity problems!

What is a Velocity Calculator and How to Use It

A velocity calculator is a nifty online tool that can help you work out an object's speed as it changes over time. It shows up frequently in physics, engineering, kinematics and even during day-to-day motion calculations. If you’re a student trying to hit on the right answer to your homework question, or you’re just curious about how fast something travels, this calculator gives you quick and accurate results.

Why Use a Velocity Calculator?

Understanding how quickly something moves is key to many fields. In physics, velocity not only tells you how fast an object is traveling, it also gives you a sense of the direction in which it is moving. While speed is simply a number, velocity is a vector — it has magnitude and direction. Calculating the velocity by hand can be very time consuming and can result in errors. A velocity calculator takes care of this for you, providing quick, accurate info according to the data you input.

How to Find Velocity

Velocity is determined by the following formula:
v = u + a × t
Where:

  • v = final velocity
  • u = initial velocity
  • a = acceleration
  • t = time


This equation comes in handy if something is accelerating when something is accelerating instead. If you have displacement and time you can also utilize: v = s / t, s being distance and t being time.

How to Use This Velocity Calculator

The calculator is easy to use:

  1. Decide which variable you are looking for: v (final velocity), u (initial velocity), a (acceleration of an object), or t (time).
  2. Once you have made your selection, fill in the fields provided with the known quantities in the other fields. For example, if you are searching for v, you will have to input values for u, a, and t.
  3. Make sure to choose the appropriate unit for each field (i.e. m/s, km/h, ft/s, etc).
  4. Simply click “Calculate” and the missing value will appear immediately.

Tips for Accurate Results

Here a few tips to get the best results:

  • Watch your units at all times. If we mix things around, such as decide to use km/h with m/s, we can get into some rather confusing results.
  • Fill in all but the field you want to solve for.
  • Use decimal points rather than commas when entering non-integer numbers.

This calculator is designed to be fast and easy to use, while also providing all the functionality you need for homework, homework support, or just a quick calculation. Give it a shot and see how easy it as is to solve equations of motion!