How Many Millimeters in an Inch?
クイックアンサー
There are 25.4 millimeters in an inch.
1 inch = 25.4 millimeters
変換の理解
By international agreement since 1959, one inch is defined as exactly 25.4 millimeters. This exact relationship makes converting between imperial and metric length units straightforward and is fundamental to engineering and manufacturing.
公式
1 inch = 25.4 millimeters
一般的な例
| 説明 | 値 |
|---|---|
| A 1/4-inch drill bit | 6.35 mm |
| A 1/2-inch bolt | 12.7 mm |
| A 3/8-inch wrench | 9.525 mm |
クイックリファレンス表
この表を使ってinchとmillimetersの間の変換を素早く行えます：
| inch | millimeters |
|---|---|
| 1 | 25.4 |
| 2 | 50.8 |
| 5 | 127 |
| 10 | 254 |
| 25 | 635 |
| 50 | 1,270 |
| 100 | 2,540 |
よくある質問
How Many Millimeters in an Inch?
There are 25.4 millimeters in an inch. By international agreement since 1959, one inch is defined as exactly 25.4 millimeters. This exact relationship makes converting between imperial and metric length units straightforward and is fundamental to engineering and manufacturing.
inchをmillimetersに変換する公式は？
公式は：1 inch = 25.4 millimeters。変換するには、inchの数に25.4を掛けてmillimetersの同等値を得ます。
millimetersをinchに変換するには？
millimetersをinchに変換するには、{fromUnit}の数を25.4で割ります。例えば、127 {fromUnit}は5 {toUnit}に相当します。