Conversor de Base Numérica Online Grátis
Convert between binary, octal, decimal and hexadecimal number systems
The Number Base Converter instantly translates any integer between binary (base-2), octal (base-8), decimal (base-10), and hexadecimal (base-16). Computer science students, embedded developers, and anyone working with bitfields, permissions, or memory layouts use it to cross-check conversions that are easy to get wrong by hand.
Frequently Asked Questions
Sobre Esta Calculadora
Number base conversions appear constantly in computing: Unix permissions are written in octal, memory addresses in hex, CPU registers in binary, and user-facing values in decimal. Switching between them mentally — or on paper — requires careful positional arithmetic that's prone to transposition errors, especially under time pressure.
This converter accepts input in any base and simultaneously displays the equivalent in all four bases. For binary, it also groups digits into nibbles (groups of four) for easier reading, and shows how the bit pattern relates to hex digits. For large numbers, it handles values up to the browser's safe integer limit.
Beyond simple conversion, understanding how the same number looks in different bases builds intuition for low-level programming concepts like bitmasks, color channels (RGB in hex), and network address arithmetic. Students preparing for CS fundamentals exams and developers debugging hardware interfaces use this tool daily.
O Conversor de Base Numérica converte números entre formato binário, octal, decimal e hexadecimal.
Exemplo Resolvido
Converting Unix file permission 755 (octal) to all bases
Entradas:
- Input: 755 (octal)
Passo a Passo:
- Octal 755 to decimal: 7×64 + 5×8 + 5×1 = 448 + 40 + 5 = 493
- Decimal 493 to binary: 493 = 256+128+64+32+8+4+1 = 0001 1110 1101 → 111 101 101
- Decimal 493 to hex: 493 ÷ 16 = 30 remainder 13 (D) → 1E in next step → 0x1ED
- Grouped binary: 111 101 101 (rwxr-xr-x)