RFID Memory Bits and Bytes Converter

Convert RFID chip memory between bits, bytes, words, pages, blocks, kbit and KiB. Distinguish decimal and binary units before comparing datasheets.

Calculations run locally. Input values are not submitted to our server.

Result

bits
1152
bytes
144
16 bit words
72
4 byte pages
36
16 byte blocks
9
kbit
1 + 152/1000
Kibit
1 + 128/1024
kB
0 + 1152/8000
KiB
0 + 1152/8192

Worked example

144 bytes equals 1152 bits or 36 pages of four bytes. 1 kbit is 1000 bits; 1 Kibit is 1024 bits. Chip datasheets sometimes use kbit informally, so check their memory map.

Method and assumptions

Memory capacity is not the same as writable application space. Reserved data, UIDs, sector trailers, security settings and NDEF framing consume capacity. This tool converts the quantity you enter; it does not assume that all memory is available to an application. A word is 16 bits, a page is four bytes and a block is 16 bytes only for the units explicitly selected here.

References

Calculation logic reviewed 17 October 2026. Read our methodology.