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It describes how quickly or slowly an object moves from one place to another. The standard (SI) unit of speed is meters per second (m/s), but it can also be expressed in other units, such as kilometers per hour (km/h), miles per hour (mph), or feet per second (ft/s), depending on the context or the country's measurement system.
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- What Units of Speed Are supported?
- Speed Conversion. Imperial vs. Metric units.
- Speed Conversion Examples
- Speed Conversion Tables
Speed is the distance covered in a specified slice of time. Naturally, speed is measured in units of distance divided by units of time. This versatile speed convertersupports conversions between imperial units, between metric units, as well as converts from metric to imperial, and vice versa. You can convert units used for measuring speed such as m...
Since 1959 both metric and imperial units of speed are defined using the standard meter (metre in British English) as a base unit. Consequently, all metric units for measuring velocity are expressed relative to it, e.g. a kilometer is 1,000 meters. To convert between metric units one needs to take into account the length dimension and the time dime...
There are many possible conversions between the metrics supported in our converter above. Some selected examples are below.
Below are conversion tables for a few of the most used pairs of units for measuring speed. You can use these for quick reference or use our velocity converter above for any other value or pair of interest. Our tool also works offline: you can use it as long as the page is cached in your browser. Kilometers per hour to miles per hour conversion tabl...
You are on planet Earth which is spinning at 40,075 km per day (about 1675 km/h or 465 m/s), and moving around the Sun at about 100,000 km/h, which is itself moving through the Galaxy. Next time you are out walking, imagine you are still and it is the world that moves under your feet.
v nt x change in time t. In the first hour, the car travels 30 km since it moves at a constant velocity of 30 km/h. x vt 30 km/h 1 h 30 km. In the second hour, the car travels 50 km since it moves at 50 km/h. The total displacement over the two hours is. 30 km + 50 km = 80 km. The average velocity of the car is: . .
1 km/ms = 1000 m/ms. Note: For Speed or Velocity conversions, US Customary Units and the Imperial System are equivalent.
Convert between speed and velocity units like m/s, km/h, knots, mph and ft/s. Speed is the ratio of covered distance to time and can expressed as. v = s / t (1) where. v = velocity (m/s, km/h, mph ..) s = distance traveled (m, km, miles ..) t = time taken (s, hours ...) The table below can be used to convert between common speed and velocity units:
