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Numbers / Base Converter
Binary · Hexadecimal · Decimal · Octal — for programming, computers, and tech
Converted Value
FF
255 decimal = FF hexadecimal
💻 Binary
11111111
🔢 Octal
377
📊 Decimal
255
🎨 Hex
FF
📊 Binary to Hex Quick Reference
| Decimal | Binary | Octal | Hex |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
| 1 | 1 | 1 | 1 |
| 2 | 10 | 2 | 2 |
| 3 | 11 | 3 | 3 |
| 4 | 100 | 4 | 4 |
| 5 | 101 | 5 | 5 |
| 6 | 110 | 6 | 6 |
| 7 | 111 | 7 | 7 |
| 8 | 1000 | 10 | 8 |
| 9 | 1001 | 11 | 9 |
| 10 | 1010 | 12 | A |
| 11 | 1011 | 13 | B |
| 12 | 1100 | 14 | C |
| 13 | 1101 | 15 | D |
| 14 | 1110 | 16 | E |
| 15 | 1111 | 17 | F |
📊 Powers of 2 (Computer Memory Reference)
2⁰ = 1
2¹ = 2
2² = 4
2³ = 8
2⁴ = 16
2⁵ = 32
2⁶ = 64
2⁷ = 128
2⁸ = 256
2⁹ = 512
2¹⁰ = 1024 (1 KB)
2²⁰ = 1,048,576 (1 MB)
💻 Common Tech Values
🎨 RGB Color Max (255 = FF)
📱 8-bit limit (256 = 100 hex)
💾 1 KB (1024 = 400 hex)
🖥️ 16-bit max (65535 = FFFF)
🎨 24-bit color (FFFFFF)
💡 Base Conversion Tips
💻 Binary is used by computers (0/1)
🎨 Hex is used for colors (#FF0000 = red)
📊 Octal is used for Unix file permissions
🔢 Decimal is what humans use daily
💻 Binary (Base 2)
🔢 Octal (Base 8)
📊 Decimal (Base 10)
🎨 Hexadecimal (Base 16)