2進数変換ツールです。10進数から2進数、2進数から10進数へすばやく変換でき、対応する16進数も確認できます。
Use this binary converter to switch between decimal and binary instantly, with the matching hexadecimal value shown at the same time. It is useful for decimal to binary, binary to decimal, and quick base conversion in programming, electronics, networking, and study.
This page is best for fast whole-number checks when you want to see how a decimal value is written in base 2, or when you need to turn a binary number back into standard decimal notation. The built-in hexadecimal output also helps when you compare binary and hex side by side.
初期データ
変換は双方向で使えます！
関連する計算ツール
変換例
\begin{align}
110_{2} &= 1\times2^{2}+1\times2^{1}+0\times2^{0}=6_{10} \\
\\
6_{10} &= 110_{2}:\\
\end{align}
6 / 2 = 3, 余り 0, (LSB - Least Significant Bit)
3 / 2 = 1, 余り 1
1 / 2 = 0, 余り 1, (MSB - Most Significant Bit)
3 / 2 = 1, 余り 1
1 / 2 = 0, 余り 1, (MSB - Most Significant Bit)
2進数早見表
| 10進数（正の数） | 2進数 |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 10 |
| 3 | 11 |
| 4 | 100 |
| 5 | 101 |
| 6 | 110 |
| 7 | 111 |
| 8 | 1000 |
| 9 | 1001 |
| 10 | 1010 |
| 10進数（正の数） | 2進数 |
|---|---|
| 11 | 1011 |
| 12 | 1100 |
| 13 | 1101 |
| 14 | 1110 |
| 15 | 1111 |
| 16 | 10000 |
| 32 | 100000 |
| 64 | 1000000 |
| 128 | 10000000 |
| 256 | 100000000 |