單位換算器
mm 轉分數英吋
輸入任何數值，結果會立即更新。
mm 轉分數英吋
顯示的數值會經過四捨五入，但內部計算仍保留完整精確度。
如何使用此計算器
- 輸入計算器要求的數值。
- 查看即時結果與其他單位的數值。
- 使用表格和公式核對常見範例。
換算表
| mm | in | 1/64 in | 1/32 in |
|---|---|---|---|
| 1 mm | 0.03937 in | 3/64 in | 1/32 in |
| 2 mm | 0.07874 in | 5/64 in | 3/32 in |
| 3 mm | 0.11811 in | 1/8 in | 1/8 in |
| 4 mm | 0.15748 in | 5/32 in | 5/32 in |
| 5 mm | 0.19685 in | 13/64 in | 3/16 in |
| 6 mm | 0.23622 in | 15/64 in | 1/4 in |
| 8 mm | 0.31496 in | 5/16 in | 5/16 in |
| 10 mm | 0.3937 in | 25/64 in | 13/32 in |
| 12 mm | 0.47244 in | 15/32 in | 15/32 in |
| 16 mm | 0.62992 in | 5/8 in | 5/8 in |
| 20 mm | 0.7874 in | 25/32 in | 25/32 in |
| 25 mm | 0.98425 in | 63/64 in | 31/32 in |
| 30 mm | 1.1811 in | 1 3/16 in | 1 3/16 in |
| 50 mm | 1.9685 in | 1 31/32 in | 1 31/32 in |
公式
in = mm ÷ 25.4
常見問題
公式?
in = mm ÷ 25.4
精確度與四捨五入?
顯示的數值會經過四捨五入，但內部計算仍保留完整精確度。
資料來源?
NIST / BIPM