| petabyte | 1 PB | 2 PB | 3 PB | 4 PB | 5 PB | 6 PB | 7 PB | 8 PB | 9 PB | 10 PB | 11 PB | 12 PB | 13 PB | 14 PB | 15 PB | 16 PB | 17 PB | 18 PB | 19 PB | 20 PB | 21 PB | 22 PB | 23 PB | 24 PB | 25 PB | 26 PB | 27 PB | 28 PB | 29 PB | 30 PB | 31 PB | 32 PB | 33 PB | 34 PB | 35 PB | 36 PB | 37 PB | 38 PB | 39 PB | 40 PB | 41 PB | 42 PB | 43 PB | 44 PB | 45 PB | 46 PB | 47 PB | 48 PB | 49 PB | 50 PB | 51 PB | 52 PB | 53 PB | 54 PB | 55 PB | 56 PB | 57 PB | 58 PB | 59 PB | 60 PB | 61 PB | 62 PB | 63 PB | 64 PB | 65 PB | 66 PB | 67 PB | 68 PB | 69 PB | 70 PB | 71 PB | 72 PB | 73 PB | 74 PB | 75 PB | 76 PB | 77 PB | 78 PB | 79 PB | 80 PB | 81 PB | 82 PB | 83 PB | 84 PB | 85 PB | 86 PB | 87 PB | 88 PB | 89 PB | 90 PB | 91 PB | 92 PB | 93 PB | 94 PB | 95 PB | 96 PB | 97 PB | 98 PB | 99 PB | 100 PB |
| byte | 1.0 × 1015 B | 2.0 × 1015 B | 3.0 × 1015 B | 4.0 × 1015 B | 5.0 × 1015 B | 6.0 × 1015 B | 7.0 × 1015 B | 8.0 × 1015 B | 9.0 × 1015 B | 1.0 × 1016 B | 1.1 × 1016 B | 1.2 × 1016 B | 1.3 × 1016 B | 1.4 × 1016 B | 1.5 × 1016 B | 1.6 × 1016 B | 1.7 × 1016 B | 1.8 × 1016 B | 1.9 × 1016 B | 2.0 × 1016 B | 2.1 × 1016 B | 2.2 × 1016 B | 2.3 × 1016 B | 2.4 × 1016 B | 2.5 × 1016 B | 2.6 × 1016 B | 2.7 × 1016 B | 2.8 × 1016 B | 2.9 × 1016 B | 3.0 × 1016 B | 3.1 × 1016 B | 3.2 × 1016 B | 3.3 × 1016 B | 3.4 × 1016 B | 3.5 × 1016 B | 3.6 × 1016 B | 3.7 × 1016 B | 3.8 × 1016 B | 3.9 × 1016 B | 4.0 × 1016 B | 4.1 × 1016 B | 4.2 × 1016 B | 4.3 × 1016 B | 4.4 × 1016 B | 4.5 × 1016 B | 4.6 × 1016 B | 4.7 × 1016 B | 4.8 × 1016 B | 4.9 × 1016 B | 5.0 × 1016 B | 5.1 × 1016 B | 5.2 × 1016 B | 5.3 × 1016 B | 5.4 × 1016 B | 5.5 × 1016 B | 5.6 × 1016 B | 5.7 × 1016 B | 5.8 × 1016 B | 5.9 × 1016 B | 6.0 × 1016 B | 6.1 × 1016 B | 6.2 × 1016 B | 6.3 × 1016 B | 6.4 × 1016 B | 6.5 × 1016 B | 6.6 × 1016 B | 6.7 × 1016 B | 6.8 × 1016 B | 6.9 × 1016 B | 7.0 × 1016 B | 7.1 × 1016 B | 7.2 × 1016 B | 7.3 × 1016 B | 7.4 × 1016 B | 7.5 × 1016 B | 7.6 × 1016 B | 7.7 × 1016 B | 7.8 × 1016 B | 7.9 × 1016 B | 8.0 × 1016 B | 8.1 × 1016 B | 8.2 × 1016 B | 8.3 × 1016 B | 8.4 × 1016 B | 8.5 × 1016 B | 8.6 × 1016 B | 8.7 × 1016 B | 8.8 × 1016 B | 8.9 × 1016 B | 9.0 × 1016 B | 9.1 × 1016 B | 9.2 × 1016 B | 9.3 × 1016 B | 9.4 × 1016 B | 9.5 × 1016 B | 9.6 × 1016 B | 9.7 × 1016 B | 9.8 × 1016 B | 9.9 × 1016 B | 1.0 × 1017 B |
The petabyte is a multiple of the unit byte for digital information. The prefix peta indicates the fifth power of 1000 and means 1015 in the International System of Units (SI), and therefore 1 petabyte is one quadrillion (short scale) bytes, or 1 billiard (long scale) bytes or 1000 terabyte, or 1 000 000 gigabytes . The unit symbol for the petabyte is PB.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| petabyte | PB | 1 petabyte = 1000 terabyte = 1 000 000 gigabytes = 1015 bytes = 8 000 000 000 000 000bits | = 1015 bytes = 1 000 000 000 000 000 bytes = 8 000 000 000 000 000 bits | Metric system SI |
| petabytes | bytes | petabytes | bytes |
|---|---|---|---|
| 1 | = 1.0E+15 | 6 | = 6.0E+15 |
| 2 | = 2.0E+15 | 7 | = 7.0E+15 |
| 3 | = 3.0E+15 | 8 | = 8.0E+15 |
| 4 | = 4.0E+15 | 9 | = 9.0E+15 |
| 5 | = 5.0E+15 | 10 | = 1.0E+16 |
The byte (/ˈbaɪt/) is a unit of digital information that most commonly consists of eight bits.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| byte | B | = 23 bits | = 23 bits | Metric system SI |
| bytes | petabytes | bytes | petabytes |
|---|---|---|---|
| 1 | = 1.0E-15 | 6 | = 6.0E-15 |
| 2 | = 2.0E-15 | 7 | = 7.0E-15 |
| 3 | = 3.0E-15 | 8 | = 8.0E-15 |
| 4 | = 4.0E-15 | 9 | = 9.0E-15 |
| 5 | = 5.0E-15 | 10 | = 1.0E-14 |
| petabytes | bytes |
|---|---|
| 1 | = 1.0 × 1015 |
| 1.0 × 10-15 | = 1 |
| Symbol | Definition |
|---|---|
| ≡ | exactly equal |
| ≈ | approximately equal to |
| = | equal to |
| digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |