A tbyte, terabyte, or TB equals 1,099,511,627,776 (240) bytes. However, the IEC defines a TB as equal to 1,000,000,000,000 (1012) bytes. Therefore, a TB could be equal to either of these values.

What comes before a terabyte?

A gigabyte comes before a terabyte.

When the “b” is lowercase (Tb), this refers to a terabit.

  • What comes before a terabyte?
  • What comes after a terabyte?
  • Terabyte vs. other data measurements.
  • Related information

What comes after a terabyte?

A petabyte comes after a terabyte.

Terabyte vs. other data measurements

Below is a listing of terabyte values where a terabyte is considered 1,000,000,000,000 (1012) bytes. Using this chart, you can find how many terabytes are in other measurements. For example, you can see 1,000 terabytes in a petabyte. For measurements that are smaller than a terabyte, the decimal value is shown.

Bit, Measurements, Storage device, Tebibit, Tera

See our TiB (tebibyte) definition for a listing of gigabyte values where a terabyte is equal to 1,099,511,627,776 (240) bytes.

  • Compare terabyte and other measurements with our conversion tool.
  • How much is 1 byte, kilobyte, megabyte, gigabyte, etc.?