The US dry quart is a unit of volume in the US customary system with the symbol qt.
1 US dry quart is equal to 1/32 US bushels, 1/8 US pecks, 1/4 US dry gallons or 2 US dry pints. The SI / metric equivalent is ≈ 1.101221 L. There are 38.758 imperial fluid ounces in
The peck is a unit of volume in the US customary unit system. It uses the symbol pk.
1 US peck is equal to 1/4 of a US bushel. This is also equal to 2 US dry gallons, 8 US dry quarts or 16 US dry pints. In SI / metric, this equates to 8.809768 L.
Although the imperial peck is almost obsolete, it survives in some places in the USA - where some products (namely apples) are still sold by the peck.
It appears in the old English nursery rhyme; 'Peter Piper' where he 'picked a peck of pickled peppers'.