🔢 Number Systems

Convert hexadecimal to decimal

To convert hexadecimal to decimal, type the number below and the result appears instantly. Example: 2D in hexadecimal equals 45 in decimal.

Value

Result —

How to convert

Multiply each digit by 16 raised to its position (counting from the right, starting at 0) and add the results. Example: 2D in hexadecimal = 45 in decimal.

Conversion table

Hexadecimal to decimal conversion table for common values
Hexadecimal	Decimal
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
A	10
F	15
10	16
20	32
40	64
64	100
FF	255
100	256
3E8	1000

About the units

Hexadecimal — symbol hex.
Decimal — symbol dec.

Frequently asked questions

How do I convert hexadecimal to decimal?

Multiply each digit by 16 raised to its position (counting from the right, starting at 0) and add the results. Example: 2D in hexadecimal = 45 in decimal.

Which digits are allowed in hexadecimal?

Base 16: the allowed digits are 0 1 2 3 4 5 6 7 8 9 A B C D E F.

Are my numbers sent to a server?

No. The conversion runs entirely in your browser and nothing is sent to a server.

Related conversions

Reverse: decimal to hexadecimal

Hexadecimal to other systems

hexadecimal to binary hexadecimal to octal

Other systems to decimal

binary to decimal octal to decimal

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