Hex to Decimal

Convert base-16 values into decimal numbers and compare the matching octal and binary forms.

Hexadecimal
Valid: 0-9, A-F (case insensitive)
Decimal (Base 10)
Result will appear here
Octal (Base 8)
—
Binary (Base 2)
—
Quick Reference
0→0
1→1
2→2
3→3
4→4
5→5
6→6
7→7
8→8
9→9
10→A
11→B
12→C
13→D
14→E
15→F

What does Hex to Decimal do?

Hex to Decimal converts base-16 values into base-10 numbers.

  • Primary use: Hex to Decimal converts base-16 values into base-10 numbers.
  • Key technical fact: Hexadecimal uses 16 symbols: digits 0-9 and letters A-F.
  • Practical check: Check accepted digits, ranges, signs, prefixes, and rounding before copying the converted value into code.
Topic Direct answer Source
Direct answer Hex to Decimal converts base-16 values into base-10 numbers. Browser JavaScript
Key fact Hexadecimal uses 16 symbols: digits 0-9 and letters A-F. Browser JavaScript
Processing model Runs locally in the browser; no production Node server receives the input. Browser JavaScript

Convert hexadecimal values to decimal integers

Hex to Decimal turns base-16 input into base-10 output and also shows the equivalent octal and binary values. Use it to check memory addresses, byte values, protocol fields, color components, or values copied from logs and documentation.

Enter hexadecimal digits 0-9 and A-F; letter case does not matter, and whitespace is ignored. If your source includes a prefix such as 0x, remove it unless you have confirmed the converter accepts that prefix.

How to use

  1. Type or paste a hexadecimal number into the input field.
  2. Review the decimal result, plus the octal and binary equivalents shown for cross-checking.
  3. Use Copy for the decimal value, or Clear before checking another number.

What is hexadecimal to decimal conversion?

Hexadecimal is base 16, using 0-9 for values zero through nine and A-F for values ten through fifteen. Decimal is base 10, the everyday number system used for counts and measurements.

Each hex digit represents four binary bits, which is why hex is common in programming and binary data. Leading zeros may matter for fixed-width values such as bytes or addresses, even when the numeric decimal value is unchanged.

Input notes

Use only hexadecimal digits and remove labels, separators, or prefixes that are not part of the number. For fixed-width data, keep a note of any leading zeros because numeric conversion may not preserve display width.

Example

The hex byte FF converts to decimal 255 and can also be checked as octal and binary:

--- Hex Input ---
FF

--- Decimal ---
255

--- Octal ---
377

--- Binary ---
11111111

MCP integration

MCP (Model Context Protocol) lets AI agents and apps discover and run Coding.Tools utilities for repeatable conversions, formatting, hashing, and generation workflows.

MCP tool name: hex-to-decimal

MCP endpoint: https://coding.tools/mcp

Call tools/list first. Each tool entry includes inputSchema, outputSchema, and examples so an AI agent or client can build valid arguments without guessing.

For tools/call, read result.content[0].text for the display value and result.structuredContent for machine parsing. Tool-level failures return isError: true; protocol failures return a JSON-RPC error.

Example tools/call request:

curl -s https://coding.tools/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -H "MCP-Protocol-Version: 2025-06-18" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"hex-to-decimal","arguments":{"input":"0x1A3F"}}}'

Most text and data tools accept an input string plus optional options. Browser-only image tools are listed for discovery and return a web UI link when they need browser image APIs.