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AA in Decimal

Hexadecimal AA equals 170 in decimal.

Hexadecimal → Decimal
AA=170
Open AA in the interactive hexadecimal to decimal converter →
Why this number matters: 170 is 0xAA / binary 10101010 - the classic alternating bit pattern used in memory tests.

AA in all number bases

Decimal170
Hexadecimal0xAA
Binary1010 1010
Octal252

How aa converts from hexadecimal to decimal

Multiply each digit by 16 raised to its position (starting at 0 from the right), then add the results:

A× 161 = 10 × 16 = 160
A× 160 = 10 × 1 = 10

Sum: 170