Calculadora de Velocidade Média
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
v = d / t
About this calculator
The Average Speed Calculator is a practical tool to determine average speed, distance traveled, or time spent on a trip. Simply enter two of the three parameters (distance and time, distance and speed, or time and speed) and the calculator automatically provides the third value. It uses the classic physics formula: average speed equals distance divided by time (v = d / t).
This calculator is useful in everyday situations such as planning car trips, estimating arrival time, or calculating distance covered during a run. For example, if you traveled 240 km in 3 hours, the calculator shows an average speed of 80 km/h. Or, if you maintain a speed of 60 km/h for 2 hours, you find you covered 120 km.
When using the calculator, keep in mind that average speed considers total time, including stops. For routes with varying speeds, the result is an overall average. Ensure consistent units (km and hours, or meters and seconds) for accurate results. The tool can also help convert between units, such as km/h to m/s, if needed.
Caution: do not confuse average speed with instantaneous speed. The calculator does not replace real-time measuring devices like speedometers. For fuel or efficiency calculations, use specific calculators. Always verify that entered data is realistic, especially in traffic safety contexts.
Frequently asked questions
Can I use any unit of measurement?
Yes, but consistency is important. If you use km for distance, use hours for time and the result will be in km/h. For meters and seconds, the result will be in m/s.
Does the calculator consider stops along the way?
Yes, average speed considers total time, including stops. If you stopped to rest, that time counts in the calculation.
What is the difference between average speed and instantaneous speed?
Average speed is the average over the entire journey, while instantaneous speed is the speed at a specific moment, like the speedometer reading.
How do I convert km/h to m/s?
Divide the value in km/h by 3.6. For example, 72 km/h ÷ 3.6 = 20 m/s. The calculator can do this conversion automatically if you enter the correct values.