HEX to Decimal
Convert hexadecimal to decimal — FF becomes 255, exactly and instantly.
How to use HEX to Decimal
- Enter the hex value — FF, ff or fF all work; drop any 0x or # prefix.
- Read the decimal instantly: FF → 255, 20AC → 8364.
- Convert several at once by separating values with spaces — e.g. the FF 66 00 of a color code.
- Click “Copy result” to use the decimal value in calculations or searches.
What is HEX to Decimal?
A hex to decimal converter reads a base-16 number and outputs its everyday base-10 value. Hex places are worth 1, 16, 256, 4096… from the right, and the letters A–F stand for 10–15: 1A = 1×16 + 10 = 26; FF = 15×16 + 15 = 255.
You need this direction whenever hex-speaking systems hand you a value your brain wants in ordinary numbers: a color channel, a memory address, an error code like 0x80070005, a Unicode code point like U+20AC. Hex is compact for machines; decimal is what humans count in.
About the HEX to Decimal
Paste hex — uppercase, lowercase, with or without spacing between values — and the decimal equivalent appears instantly. Multiple space-separated values convert independently, so the three channels of a color code convert in one paste.
Real examples: E6 in a color is 230 of 255 (90% intensity); Unicode U+20AC is code point 8364; a file size logged as 0x2000 bytes is 8192; the classic Windows error 0x80070005 is 2147942405 — the number you'd search a knowledge base for. BigInt math keeps 64-bit-and-beyond values exact, and non-hex characters are flagged with the specific bad token.
Everything runs in your browser. Decimal to Hex goes the other way; Hex to Binary shows the same value's bit pattern.
Frequently Asked Questions
Learn more
Hexadecimal Explained: Why Programmers Use Base 16
HEX codes are everywhere — colors, memory addresses, hashes. Here is what hexadecimal is and how to convert it.
Read the guide