A peck is an imperial and United States customary unit of dry volume, equivalent to 2 gallons or 8 dry quarts or 16 dry pints (9.09 (UK) or 8.81 (US) liters). Two pecks make a kenning (obsolete), and four pecks make a bushel. Although the peck is no longer widely used, some produce, such as apples, is still often sold by the peck.
| 1 US peck | = | 1⁄4 of a US bushel |
| = | 2 US dry gallons |
| = | 8 US dry quarts |
| = | 16 US dry pints |
| = | 537.605 cubic inches |
| = | 8.80976754172 litres |
| ≈ | 1.93788 imperial gallons |
| ≈ | 310.060 imperial fluid ounces |