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| 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 …) |
The quart (abbreviation qt.) is an English unit of volume equal to a quarter gallon. It is divided into two pints or four cups. Historically, the exact size of the quart has varied with the different values of gallons over time and in reference to different commodities. Presently, three kinds of quarts remain in use: the liquid quart and dry quart of the US customary system and the imperial quart of the British imperial system. All are roughly equal to one metric liter.
| 1 US liquid quart | = | 1/4 | US liquid gallons |
| = | 2 | US liquid pints | |
| = | 4 | US liquid cups | |
| = | 8 | US liquid gills | |
| = | 32 | US fluid ounces | |
| = | 57.75 | cubic inches | |
| ≡ | 0.946352946 | liters | |
| ≈ | 33. | imperial fluid ounces |
The minim (abbreviated min, ♏, or ) is a unit of volume in both the imperial and US customary systems of measurement. Specifically it is 1⁄60 of a fluidram or 1⁄480 of a fluid ounce. In the pharmacopeoia, it is also noted that the minim was originally created by Mr. Timothy Lane, F.R.S, as 61440 parts per wine gallon.