Speed is the ratio of distance to time. If we know the distance (or its unit) and the same time (or its unit), then we can measure the same distance and the same time period with different length and time measures. Today, the online speed converter is the best way to translate speed units.

Here our free online speed converter

Follow the link and you can immediately convert the speed units you are interested in, and we will continue the story about the speed history.

The history of speed units has come a long way, because long time ago people from different countries tried to measure different values, such as time and distance. Our ancestors, in particular, measured the distance in elbows (1 elbow - approximately 46 cm), feet (1 foot - approximately 297 mm), fathoms (2.16 m) or stacks (19 to 31 cm). As we can see, the ancient metric systems were quite inaccurate.

The metric system, which is familiar to us, was created in France in 1795. Now it is used by most countries in the world. However, there are exceptions, such as the United States, Liberia and Myanmar. And in Britain, the generally accepted world metric system is used in parallel with the imperial one.

It is interesting that apart from the familiar time values - second, minute, hour, day, etc., there are unusual units of measurement. Such an example is the largest time unit in the Guinness Book of Records - Hindu Calpa, which is 43,200,000 years.

However, generally accepted time and distance units are relevant for everyday use, with the help of which speed values are determined. It is precisely these precise values that make it possible to determine the speed of an object in the desired units of measurement with the help of an online calculator and unit converter. The following basic speed values are distinguished:

- Kilometers per second (km/s). A unit of measurement used mainly in astronomy and cosmonautics, as it can rarely be applied in terrestrial conditions;
- Metrics per second (m/s). The unit of measurement reflects the number of metres covered by a given object in 1 second.
- Kilometers per hour (km/h). The unit of measurement of speed by which we know the distance that the object travels in one hour;
- Millimeters per second (mm/s). The unit of measurement allows us to find out the number of millimeters overcome by an object per second;
- Micrometers (10
^{-6}m) per second (µm/s).

The above speed measurement values are part of the Système International d'Unités (SI) and all of them can be translated online using a unit converter.

Also among the units of speed are the units of speed, used in navigation, meteorology and navigation. 1 node is 1 nautical mile (1.852 km/h).

The Speed Converter makes it easy to convert common speed values into American/British miles per second, miles per hour, feet per second if necessary. 1 mile equals 1,609.344 m and 1 foot equals 30.48 cm.

A speed converter will also be needed to convert the speed of light, speed of sound and the like.