The fluid ounce is a unit of volume with a fascinating history that dates back to Ancient Rome. Originally based on a single sip’s worth of wine, it evolved over centuries to meet the needs of various cultures and trades. Today, a fluid ounce comprises different measurements in the U.S. and the UK, with the U.S. fluid ounce measuring approximately 29.57 milliliters, and the UK, or imperial fluid ounce, equivalent to about 28.41 milliliters.
This discrepancy roots back to the British Imperial System’s adjustments in the 19th century. Interestingly, the fluid ounce is not just a relic of the past; it’s still widely used in everything from cooking recipes to beverage servings, showcasing its enduring relevance in modern life.
The quart, a unit of volume, has a historical significance connected to the diverse measurement systems used worldwide. Originating from the Latin word “quartus,” meaning a fourth part, it was historically defined as a quarter of a gallon. Interestingly, the quart’s size varies significantly depending on the system of measurement – the US customary quart is roughly 946 milliliters, while the UK (Imperial) quart is larger, at approximately 1,136 milliliters. This divergence traces back to the early 19th century when Britain standardized the Imperial units, leading to these distinctions.
Beyond its historical context, the quart’s everyday application is ubiquitous in cooking and grocery shopping. In the US, you’re likely to encounter it for measuring liquids such as milk, while in the UK, liters overshadow the use of quarts today. Whether you’re in the kitchen or exploring historical measurements, the quart serves as a testament to the rich tapestry of measurement standards evolving across cultures and time.
Fluid Ounces | Quarts |
---|---|
0
fl-oz
|
0
qt
|
1
fl-oz
|
0.03125
qt
|
2
fl-oz
|
0.0625
qt
|
3
fl-oz
|
0.09375
qt
|
4
fl-oz
|
0.125
qt
|
5
fl-oz
|
0.15625
qt
|
6
fl-oz
|
0.1875
qt
|
7
fl-oz
|
0.21875
qt
|
8
fl-oz
|
0.25
qt
|
9
fl-oz
|
0.28125
qt
|
10
fl-oz
|
0.3125
qt
|
11
fl-oz
|
0.34375
qt
|
12
fl-oz
|
0.375
qt
|
13
fl-oz
|
0.40625
qt
|
14
fl-oz
|
0.4375
qt
|
15
fl-oz
|
0.46875
qt
|
16
fl-oz
|
0.5
qt
|
17
fl-oz
|
0.53125
qt
|
18
fl-oz
|
0.5625
qt
|
19
fl-oz
|
0.59375
qt
|
20
fl-oz
|
0.625
qt
|
21
fl-oz
|
0.65625
qt
|
22
fl-oz
|
0.6875
qt
|
23
fl-oz
|
0.71875
qt
|
24
fl-oz
|
0.75
qt
|
25
fl-oz
|
0.78125
qt
|
26
fl-oz
|
0.8125
qt
|
27
fl-oz
|
0.84375
qt
|
28
fl-oz
|
0.875
qt
|
29
fl-oz
|
0.90625
qt
|
30
fl-oz
|
0.9375
qt
|
31
fl-oz
|
0.96875
qt
|
32
fl-oz
|
1
qt
|
33
fl-oz
|
1.03125
qt
|
34
fl-oz
|
1.0625
qt
|
35
fl-oz
|
1.09375
qt
|
36
fl-oz
|
1.125
qt
|
37
fl-oz
|
1.15625
qt
|
38
fl-oz
|
1.1875
qt
|
39
fl-oz
|
1.21875
qt
|
40
fl-oz
|
1.25
qt
|
41
fl-oz
|
1.28125
qt
|
42
fl-oz
|
1.3125
qt
|
43
fl-oz
|
1.34375
qt
|
44
fl-oz
|
1.375
qt
|
45
fl-oz
|
1.40625
qt
|
46
fl-oz
|
1.4375
qt
|
47
fl-oz
|
1.46875
qt
|
48
fl-oz
|
1.5
qt
|
49
fl-oz
|
1.53125
qt
|
50
fl-oz
|
1.5625
qt
|
51
fl-oz
|
1.59375
qt
|
52
fl-oz
|
1.625
qt
|
53
fl-oz
|
1.65625
qt
|
54
fl-oz
|
1.6875
qt
|
55
fl-oz
|
1.71875
qt
|
56
fl-oz
|
1.75
qt
|
57
fl-oz
|
1.78125
qt
|
58
fl-oz
|
1.8125
qt
|
59
fl-oz
|
1.84375
qt
|
60
fl-oz
|
1.875
qt
|
61
fl-oz
|
1.90625
qt
|
62
fl-oz
|
1.9375
qt
|
63
fl-oz
|
1.96875
qt
|
64
fl-oz
|
2
qt
|
65
fl-oz
|
2.03125
qt
|
66
fl-oz
|
2.0625
qt
|
67
fl-oz
|
2.09375
qt
|
68
fl-oz
|
2.125
qt
|
69
fl-oz
|
2.15625
qt
|
70
fl-oz
|
2.1875
qt
|
71
fl-oz
|
2.21875
qt
|
72
fl-oz
|
2.25
qt
|
73
fl-oz
|
2.28125
qt
|
74
fl-oz
|
2.3125
qt
|
75
fl-oz
|
2.34375
qt
|
76
fl-oz
|
2.375
qt
|
77
fl-oz
|
2.40625
qt
|
78
fl-oz
|
2.4375
qt
|
79
fl-oz
|
2.46875
qt
|
80
fl-oz
|
2.5
qt
|
81
fl-oz
|
2.53125
qt
|
82
fl-oz
|
2.5625
qt
|
83
fl-oz
|
2.59375
qt
|
84
fl-oz
|
2.625
qt
|
85
fl-oz
|
2.65625
qt
|
86
fl-oz
|
2.6875
qt
|
87
fl-oz
|
2.71875
qt
|
88
fl-oz
|
2.75
qt
|
89
fl-oz
|
2.78125
qt
|
90
fl-oz
|
2.8125
qt
|
91
fl-oz
|
2.84375
qt
|
92
fl-oz
|
2.875
qt
|
93
fl-oz
|
2.90625
qt
|
94
fl-oz
|
2.9375
qt
|
95
fl-oz
|
2.96875
qt
|
96
fl-oz
|
3
qt
|
97
fl-oz
|
3.03125
qt
|
98
fl-oz
|
3.0625
qt
|
99
fl-oz
|
3.09375
qt
|
100
fl-oz
|
3.125
qt
|
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