Base-N Calculator

Convert integers between any number bases from 2 to 36 with step-by-step calculation breakdown and digit position analysis.

Free to useNo sign-up requiredUpdated Jan 2026

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Quick Examples

255 DEC FF HEX 11111111 BIN 377 OCT ZZZZ B36

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About Base-N Calculator

The Base-N Calculator is a powerful number base converter that transforms integers between any numeral systems from base-2 (binary) to base-36 (alphanumeric). Whether you are a programmer working with binary and hexadecimal, a student learning number systems, or anyone needing to convert between different radixes, this calculator provides instant conversions with detailed step-by-step explanations and interactive digit breakdowns.

What is a Number Base (Radix)?

A number base, also called radix, defines how many unique digits are used to represent numbers in a positional numeral system. The base determines the place value of each digit position - each position represents a power of the base.

Place Value Formula

For any number, each digit's contribution equals: digit_value × base^position

Where position 0 is the rightmost digit.

Common Number Bases

Base	Name	Digits Used	Common Use
2	Binary	0, 1	Computing, digital electronics
8	Octal	0-7	Unix file permissions, legacy computing
10	Decimal	0-9	Everyday counting, mathematics
12	Duodecimal	0-9, A, B	Time (12 hours), measurements (dozen)
16	Hexadecimal	0-9, A-F	Memory addresses, color codes, programming
36	Hexatrigesimal	0-9, A-Z	URL shorteners, compact encoding

How to Convert Between Number Bases

Converting to Decimal (Base-10)

To convert any number to decimal:

Identify each digit and its position (starting from 0 on the right)
Multiply each digit by base^position
Sum all the results

Example: Convert 1A3 (hexadecimal) to decimal:

3 × 16⁰ = 3 × 1 = 3
A (10) × 16¹ = 10 × 16 = 160
1 × 16² = 1 × 256 = 256
Total: 3 + 160 + 256 = 419

Converting from Decimal to Other Bases

To convert a decimal number to another base:

Divide the number by the target base
Record the remainder (this becomes a digit)
Repeat with the quotient until it reaches 0
Read the remainders in reverse order

Why Different Number Bases Matter

Binary (Base-2) in Computing

Binary is fundamental to all digital computing. Computer processors use transistors that have two states (on/off), making binary the natural language of computers. Every piece of digital data - from text to images to videos - is ultimately stored and processed as binary digits (bits).

Hexadecimal (Base-16) in Programming

Hexadecimal is widely used in programming because it provides a compact way to represent binary data. Each hex digit represents exactly 4 binary digits, making conversions straightforward:

One byte (8 bits) = exactly 2 hex digits
Memory addresses are typically shown in hex
Color codes (e.g., #FF5733) use hex values
MAC addresses use hex notation

Octal (Base-8) in Unix/Linux

Octal is used in Unix/Linux file permissions. Each octal digit represents 3 bits, corresponding to read (4), write (2), and execute (1) permissions. For example, chmod 755 sets rwxr-xr-x permissions.

How to Use This Calculator

Enter your number: Type the number you want to convert. Use digits 0-9 and letters A-Z for bases higher than 10.
Select the source base: Choose the base of your input number from the dropdown, or use the quick buttons for common bases (Binary, Octal, Decimal, Hexadecimal).
Click Convert: The calculator instantly converts your number to all bases from 2 to 36.
Explore results: View results organized by category (Computing, Mathematical), examine the digit breakdown, and copy any result with one click.

Frequently Asked Questions

What is a number base or radix?

A number base (or radix) is the number of unique digits used to represent numbers in a positional numeral system. For example, binary (base-2) uses digits 0 and 1, decimal (base-10) uses digits 0-9, and hexadecimal (base-16) uses digits 0-9 and letters A-F. The base determines how place values increase: each position is worth base^position times its digit value.

How do I convert between number bases?

To convert from any base to decimal: multiply each digit by its place value (base^position) and sum the results. To convert from decimal to another base: repeatedly divide by the target base and collect remainders in reverse order. This calculator handles both conversions automatically and shows the step-by-step process.

What are common number bases used in computing?

Binary (base-2) is fundamental to computing as it represents the on/off states of transistors. Octal (base-8) was historically used in early computing. Hexadecimal (base-16) is widely used because it compactly represents binary data - each hex digit equals exactly 4 binary digits, making it ideal for memory addresses, color codes, and byte values.

What is the maximum base supported?

This calculator supports bases from 2 to 36. Base-36 is the maximum because it uses all 10 digits (0-9) plus all 26 letters (A-Z), giving 36 unique symbols. Base-36 is sometimes called "alphanumeric" and is used in URL shorteners and compact encodings.

Can negative numbers be converted between bases?

Yes, this calculator supports negative numbers. Simply include a minus sign (-) before your number. The conversion process works the same way - the sign is preserved and applied to the final result in each base.

Additional Resources

Reference this content, page, or tool as:

"Base-N Calculator" at https://MiniWebtool.com/base-n-calculator/ from MiniWebtool, https://MiniWebtool.com/

by miniwebtool team. Updated: Jan 15, 2026

Developer API available: Run this tool from your app, automation, or agent with one JSON HTTP request. View API docs

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