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How to Use the Base Converter

Switch between number systems and validate values in real time for reliable output.

Step 1

Select Conversion Mode

Choose the direction you need, such as decimal to binary or hex to octal. Conversions follow standard positional notation and radix definitions.

Base 2: Binary values for bit-level logic.
Base 8: Octal for compact grouped bits.
Base 10: Decimal for human-readable values.
Base 16: Hex for byte-oriented workflows.
Step 2

Enter and Validate Input

Paste your number input and let the converter validate digits for the selected base. Large integer values are handled with BigInt so 32-bit/64-bit limits do not block typical use cases.

Sample Values

Decimal: 255
Binary: 11111111
Hex: FF
Octal: 377
Step 3

Review Converted Output

Output is generated immediately and can be used for debugging constants, inspecting bit patterns, and preparing values for configs and docs. This is common in bitwise operations and protocol-level analysis with binary, octal, and hexadecimal.

Example 1

Mode: Decimal to Hex
Input: 4095
Output: FFF

Example 2

Mode: Hex to Octal
Input: FF
Output: 377
Step 4

Copy, Download, and Reuse

Use Copy for immediate reuse in terminals and IDEs, or Download to share with team members. For parsing behavior in code, review parseInt() guidance.

Dedicated Mode Pages

Decimal to BinaryDecimal to HexDecimal to OctalBinary to DecimalBinary to HexBinary to OctalHex to DecimalHex to BinaryHex to Octal

Frequently Asked Questions

Which bases are supported?

Binary (2), octal (8), decimal (10), and hexadecimal (16).

Can I use prefixes like 0x or 0b?

Yes. Hex accepts 0x, binary accepts 0b, and octal accepts 0o.

Are large integers supported?

Yes. The converter uses BigInt internally for large integer conversion.

Does conversion happen in the browser?

Yes, conversion runs client-side in your session.

When should I use fixed converter pages?

Use fixed pages when a workflow repeats one mode often, such as Decimal to Binary or Hex to Decimal.

What tools pair well with this?

Use Reverse Hex for byte-order checks and Char to ASCII for text-code workflows.

Related Tools

All Number Converters

Use a single multi-mode tool for decimal, binary, hex, and octal conversions

Decimal to Binary

Convert decimal values to binary output for bit-level operations

Decimal to Hex

Convert decimal values to hexadecimal format for compact representation

Decimal to Octal

Convert decimal values to base-8 octal output

Binary to Decimal

Convert binary values to base-10 decimal numbers

Binary to Octal

Convert binary values to octal format