Calculating the relationship between speed, distance, and time is a fundamental aspect of kinematics in physics, as well as an everyday necessity for logistics, travel planning, and athletic pacing. While speed measures how fast an object is moving, velocity incorporates both speed and the specific direction of travel.
Kinematic Formula
Velocity (v) = Distance (d) / Time (t)
Time = Distance / Velocity, and Distance = Velocity × Time.
How to Use This Calculator
- Select the metric you are trying to solve for (Speed, Distance, or Time).
- Input the two known values into the designated fields.
- Choose your preferred units (e.g., kilometers per hour, miles, seconds).
- Click Calculate to instantly generate the missing kinematic variable.
Frequently Asked Questions (FAQ)
What is the difference between speed and velocity?
Speed is a scalar quantity, meaning it only has a magnitude (e.g., 50 km/h). Velocity is a vector quantity, meaning it has both magnitude and direction (e.g., 50 km/h North). If you drive in a circle and return to your exact starting point, your average velocity is zero, even if your speed was consistently high.
How do I convert between km/h and m/s?
To convert kilometers per hour (km/h) to meters per second (m/s), divide the speed by 3.6. Conversely, to convert m/s to km/h, multiply the value by 3.6.