What are the different number bases used for?

Binary (base 2) is fundamental to computers (0s and 1s). Octal (base 8) was historically used in computing for its compact representation. Decimal (base 10) is what humans use daily. Hexadecimal (base 16) is widely used in programming for colors (#FF0000), memory addresses, and as a compact way to represent binary (each hex digit = 4 binary bits).

How do I read hexadecimal numbers?

Hexadecimal uses digits 0-9 and letters A-F (where A=10, B=11, C=12, D=13, E=14, F=15). For example, 2F in hex equals (2×16) + 15 = 47 in decimal. The prefix 0x is often used: 0xFF = 255. Hex is popular because it's compact: the 8-bit binary 11111111 is just FF in hex.

Why is binary important in computing?

Digital computers use transistors that have two states: on (1) and off (0). This makes binary the natural language of computers. All data - numbers, text, images, videos - is ultimately stored and processed as sequences of 1s and 0s. An 8-bit byte can represent 256 different values (00000000 to 11111111).

Biggest Calculator Hub

Unit ConversionsVerifiedFeb 2026

Number Base Converter

Name: Number Base Converter
Author: Biggest Calculator Hub

Convert numbers between binary, octal, decimal, and hexadecimal number systems. Essential tool for programming, computer science, and digital electronics.

number-base.calculatorready

How to Use the Number Base Converter

This free number base converter helps you quickly calculate decimal. Simply enter your values in the fields above and click "Calculate" to see your results instantly.

Understanding Your Results

After entering your information, the calculator will display your results including binary, octal, decimal, hexadecimal. Each result is calculated using standard formulas used by financial professionals and experts in the field.

Related Calculators

Unit Conversions

Data Storage Converter

Convert between digital storage units including bytes, kilobytes, megabytes, gigabytes, and terabytes using binary (1024-based) values.

Open calculator