- 250, or 1,125,899,906,842,624 bits, although this is frequently rounded to 1,000,000,000,000,000 bits. To avoid any confusion, the term pebibit may be used when referring to this concept. Its abbreviation is Pb, or Pbit.
- Within the YPbPr color model, one of the two color-difference signals. The other is Pr (2).