how much size on eeprom

Using Arduino Storage
1

hello
I have a arduino mega 2560 and on manual it says it have 4K on eeprom.My question is, is this value bits or bytes?
does it have 512 address of 8bits each? (512 *8 = 4096)????

2

EEPROM 4 KB

That's a upper case B (byte), not a lower case b (bit).