Hex → Decimal

Model 1974 — Electronic Number Converter

0x
Decimal
Octal
Binary
Signed 32-bit

About HexConverter

A free, fast, and no-nonsense tool for converting hexadecimal numbers into decimal and other numeral systems — right in your browser, with no data sent anywhere.

Instant

Results appear as you type. No submit button, no waiting, no round-trips to a server.

Private

All conversion happens locally in your browser. We never see or store the values you enter.

Free

Always free to use. The site is supported by non-intrusive Google AdSense advertising.

What is Hexadecimal?

Hexadecimal (hex) is a base-16 numeral system used throughout computing and digital electronics. While the decimal system we use every day has digits from 0–9, hexadecimal extends that range using the letters A–F to represent values 10–15.

Because a single hex digit maps cleanly onto exactly four binary bits (a nibble), hex is the preferred shorthand for binary data in programming, memory addresses, color codes (#FF5733), and low-level hardware documentation.

What Does This Tool Convert?

Enter any valid hexadecimal value and HexConverter will instantly show you:

Hex Input Decimal Octal Binary Signed 32-bit
FF25537711111111255
1A3F6,7191507711010001111116,719
DEADBEEF3,735,928,5593365333735711011110…-559,038,737

The signed 32-bit value is particularly useful when working with languages like C or Java where integers are stored as two's complement signed 32-bit numbers.

Who Is This For?

HexConverter is designed for software developers debugging memory dumps, web designers converting color values, students learning computer science fundamentals, electronics engineers reading datasheets, and anyone who needs a quick, reliable hex conversion without installing software.