Speed (Velocity)

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The following units are included in this section:

 

ID

Unit

Definition

Wikipedia page and other notes

1

metre per second (m/s)

-

https://en.wikipedia.org/wiki/Metre_per_second

2

metre per minute (m/min)

(1/60) m/s

 

3

metre per hour (m/h)

(1/3600) m/s

https://en.wikipedia.org/wiki/Metre_per_hour

4

centimetre per second (cm/s)

10-2 m/s

 

5

centimetre per minute (cm/min)

(1/6000) m/s

 

6

centimetre per hour (cm/h)

(1/360,000) m/s

 

7

millimetre per second (mm/s)

(1/1000) m/s

 

8

millimetre per minute (mm/min)

(1/60,000) m/s

 

9

millimetre per hour (mm/h)

(1/3,600,000) m/s

 

10

kilometre per second (km/s)

103 m/s

 

11

kilometre per minute (km/min)

(50/3) m/s

 

12

kilometre per hour (km/h)

(1/3.6) m/s

 

13

mile per second (mi/s)

1609.344 m/s

Not to be confused with other types of miles

14

mile per minute (mi/min)

 

(1/60) mi/s
= 26.8224 m/s

Not to be confused with other types of miles

15

mile per hour (mi/h, mph)

 

(1/3,600) mi/s
= 0.44704 m/s

https://en.wikipedia.org/wiki/Miles_per_hour

Not to be confused with other types of miles

16

foot per second (fps, ft/s)

 

0.3048 m/s

https://en.wikipedia.org/wiki/Foot_per_second

17

foot per minute (ft/min)

 

0.00508 m/s

 

18

foot per hour (ft/h)

 

(127×10-4/150) m/s

 

19

naut. mile per hour (nmi/h, knot)

 

(463/900) m/s

https://en.wikipedia.org/wiki/Knot_(unit)

Not to be confused with other types of miles

20

speed of light (c)

 

299,792,458 m/s

https://en.wikipedia.org/wiki/Speed_of_light

 

 

All the above definitions of the various units are EXACT.

Note: In the above, a period (.) is used to indicate the decimal place and a comma (,) is used to separate groups of thousands.

 

Type of conversion relationship: DIRECTLY PROPORTIONAL (y=ax)

Example conversion diagram (see two units in bold above):

Speed