Hip Flask Sizes

Hip Flask Sizes

One of the key features of a hip flask is its capacity. Most flasks follow imperial capacity guidelines, so capacities are given in fluid ounces "fl oz" which we shorten to "oz".

1 imperial fluid ounce is equivalent to 28.4130625ml, and there are 20 fluid ounces in a pint. But what does that mean in practical terms?

We've included the following table to help you gauge the relative sizes of our hip flasks:

Pints (pt)
Litres (l)
Millilitres (ml)
Equates to (roughly)
1oz
0.05
0.03
28.4
1 small single shot of spirit in bar (25ml)
2oz
0.1
0.06
56.8
1 double shot of spirit in a bar (50ml)
3oz
0.15
0.09
85.2
4oz
0.2
0.11
113.7
5oz
0.25
0.14
142.1
Mini can of soft drink (150ml)
6oz
0.3
0.17
170.5
1 small glass of wine (175ml)
7oz
0.35
0.2
198.9
8oz
0.4
0.23
227.3
10oz
0.5
0.28
284.1
Small bottle of beer (275ml)
16oz
0.8
0.45
454.6
26oz
1.3
0.74
738.7
Bottle of wine (750ml)