How do you calculate number of bytes in a petabyte?

To calculate the number of bytes in a petabyte, you can use the conversion that 1 petabyte (PB) equals 1,024 terabytes (TB), 1 TB equals 1,024 gigabytes (GB), and 1 GB equals 1,024 megabytes (MB). Therefore, 1 PB is equal to 1,024 x 1,024 x 1,024 x 1,024 bytes, which equals 1,125,899,906,842,624 bytes. In summary, there are 1,125,899,906,842,624 bytes in a petabyte.