將米轉換為鏈 (美國測量)
米
定義: A meter, or metre (symbol: m), is the base unit of length and distance in the International System of Units (SI). The meter is defined as the distance traveled by light in 1/299 792 458 of a second. This definition was slightly modified in 2019 to reflect changes in the definition of the second.
歷史/起源: Originally, in 1793, the meter was defined as one ten-millionth of the distance from the equator to the North Pole. This changed in 1889, when the International prototype metre was established as the length of a prototype meter bar (made of an alloy of 90% platinum and 10% iridium) measured at the melting point of ice. In 1960, the meter was again redefined, this time in terms of a certain number of wavelengths of a certain emission line of krypton-86. The current definition of the meter is effectively the same as the definition that was adopted in 1983, with slight modifications due to the change in definition of the second.
目前用途: Being the SI unit of length, the meter is used worldwide in many applications such as measuring distance, height, length, width, etc. The United States is one notable exception in that it largely uses US customary units such as yards, inches, feet, and miles instead of meters in everyday use.
鏈 (美國測量)
定義:
米轉鏈 (美國測量)對照表
| 米 [m] | 鏈 (美國測量) [ch] |
|---|---|
| 0.01 m | 0.000497 ch |
| 0.10 m | 0.004971 ch |
| 1 m | 0.0497 ch |
| 2 m | 0.0994 ch |
| 3 m | 0.1491 ch |
| 5 m | 0.2485 ch |
| 10 m | 0.4971 ch |
| 20 m | 0.9942 ch |
| 50 m | 2.49 ch |
| 100 m | 4.97 ch |
| 1000 m | 49.71 ch |
如何將米轉換為鏈 (美國測量)
1 m = 0.049710 ch
1 ch = 20.12 m
範例
Convert 15 m to ch:
15 m = 15 × 0.049710 ch = 0.745644 ch
