About This Tool
What is 进制转换工具?
A tool for converting numbers between different bases including binary, octal, decimal, and hexadecimal. Essential for programming tasks involving memory addresses, color codes, and bitwise operations.
How to Use
- Select the input base (binary, octal, decimal, hex, etc.).
- Enter the number to convert.
- Select the output base for automatic conversion.
- Copy the result for your use.
Key Features
- Supports binary, octal, decimal, hexadecimal and more
- Real-time automatic conversion
- Bidirectional conversion
- Accurate handling of large numbers
Tips
- Hexadecimal is widely used in CSS color codes (e.g., #FF5733).
- Binary is the fundamental format computers use to store data internally.
- Octal is used to represent Unix file permissions (e.g., chmod 755).
进制转换工具
在二进制、八进制、十进制、十六进制等之间相互转换
Frequently Asked Questions
为什么十六进制（基数16）在编程中如此常见？▼
十六进制与二进制完美映射——每个十六进制数字恰好代表4位。这使它紧凑且易于心算转换。例如，0xFF = 二进制11111111 = 十进制255。用于内存地址、颜色代码和字节表示。
如何读取Unix文件权限的八进制表示？▼
每个八进制数字代表3个权限位：读(4)、写(2)、执行(1)。755表示：所有者rwx(7=4+2+1)，组r-x(5=4+0+1)，其他r-x(5=4+0+1)。644表示所有者rw-，组r--，其他r--。
此转换器能处理的最大数字是多少？▼
基于JavaScript的浏览器转换器可以精确处理到2^53 - 1（9,007,199,254,740,991）。更大的数字可能由于浮点限制而丢失精度。对于密码学或超大数计算，请使用专门的库。