How many cups is 40 oz?

40 fl oz = 5 cups

80 Tbsp · 1,183 mL

Measure with: 5 cups

Converter

40 fl oz = 5 cups

Fluid ounces
40 fl oz
Cups
5
Tablespoons
80
Teaspoons
240
Milliliters
1,183 mL
Measure with
5 cups
Other cup standards

US cups: 5 · nutrition-label cups (240 mL): 4.929 · metric cups (250 mL): 4.732 · UK fluid ounces: 41.63

US customary cup = 236.6 mL

A 40 fl oz insulated tumbler holds 5 cups, about 1.18 liters. That is 1 1/4 quarts, so it is bigger than a quart container by one cup.

If you track water by the tumbler, a gallon (128 fl oz) is a little over three refills of 40 oz. Two full tumblers are 10 cups.

For a kitchen task, like filling a pot for rice or soup, measure 5 cups with the 1 cup measure, or fill a 4 cup liquid measure once and add 1 cup. Check your tumbler with a measuring cup before using it as a measure; some hold a bit more or less than the label when filled to the brim. See ounces in a gallon.

Fluid ounces to cups
Fluid ouncesUS cupsCups (decimal)TablespoonsmL
1 fl oz1/80.125230
1.5 fl oz≈ 1/40.188344
2 fl oz1/40.25459
3 fl oz3/80.375689
4 fl oz1/20.58118
5 fl oz5/80.62510148
6 fl oz3/40.7512177
7 fl oz7/80.87514207
8 fl oz1116237
10 fl oz1 1/41.2520296
12 fl oz1 1/21.524355
13.5 fl oz≈ 1 2/31.68827399
14 fl oz1 3/41.7528414
15 fl oz1 7/81.87530444
16 fl oz2232473
16.9 fl oz≈ 2 1/82.11333.8500
18 fl oz2 1/42.2536532
20 fl oz2 1/22.540591
24 fl oz3348710
28 fl oz3 1/23.556828
30 fl oz3 3/43.7560887
32 fl oz4464946
36 fl oz4 1/24.5721,065
40 fl oz55801,183
48 fl oz66961,420
50 fl oz6 1/46.251001,479
60 fl oz7 1/27.51201,774
64 fl oz881281,893
80 fl oz10101602,366
128 fl oz16162563,785

Questions

How many cups is 40 oz?

40 fl oz is 5 cups, which is 2 1/2 pints or about 1.18 liters.

How many 40 oz tumblers make a gallon?

About 3.2. A gallon is 128 fl oz, so three tumblers are 120 fl oz and you need 8 fl oz more.

By Alton Vieira · Updated . Sources: US customary units: NIST Handbook 44. How we calculate.