Hex Calculator

Add, subtract, multiply and divide hex numbers, with the decimal equivalents shown.

First hex number	1F4
Operation	+
Second hex number	A7

First hex number

Operation

Second hex number

1F4 + A7 =

29B

In decimal: 500 + 167 = 667.

Decimal: 667
Binary: 1010011011

1
Convert to decimal
1F4 = 500, A7 = 167
2
Do the arithmetic
500 + 167 = 667
3
Convert back to hex
667 = 29B

About the Hex Calculator

Enter two hexadecimal numbers and an operation. The calculator gives the result in hex, decimal and binary.

Hexadecimal (base 16) uses digits 0–9 and A–F (10–15). It's used for memory addresses, colours (#FF8800) and compact binary. Carries happen at 16: F + 1 = 10.

The formula

A = 10, B = 11, C = 12, D = 13, E = 14, F = 15

Worked example

1F4 + A7

500 + 167 = 667
667 = 29B

Questions people ask

How are negative results shown?

With a minus sign. Computers often store negatives as two's complement instead, which depends on the number of bits.

Can I enter lower-case letters?

Yes; input isn't case-sensitive.

How do I convert hex to decimal?

Multiply each digit by a power of 16: 1F4 = 1 × 256 + 15 × 16 + 4 = 500.