What the tool does, how to run it, and what to expect from the result.
The formula is cups = fluid ounces ÷ 8. The converter applies it at full precision as you type, so there is nothing to memorize and no rounding surprises.
Common values:
A quick way to understand who this helps, what it solves, and where it connects next.
Anyone converting fluid ounces to cups for cooking, travel, school, or work
Instant fl oz-to-cup conversion with the formula shown
Short answers for the questions people usually have before trying a utility like this.
1 fluid ounce = 0.125 cups, so the formula is cups = fluid ounces ÷ 8. The converter above applies it at full precision.
20 fl oz = 2.5 cup.
US customary: 1 US cup is 236.588 ml, 1 US fluid ounce is 29.574 ml, 1 US gallon is 3.785 liters. UK imperial pints, quarts and gallons are about 20% larger, and the UK fluid ounce is about 4% smaller.
Yes. It computes cups = fluid ounces ÷ 8 at full double precision; the tables round to six significant digits for readability.
Nearby tools from the catalog that fit the same job or workflow.
Cups to fluid ounces, preset
Convert cups to fluid ounces instantly: 1 cup = 8 fluid ounces.
Cups to gallons, preset
Convert cups to gallons instantly: 1 gallon = 16 cups.
Cups to liters, preset
Convert cups to liters instantly: 1 cup = 0.236588 liters.
Cups to milliliters, preset
Convert cups to milliliters instantly: 1 cup = 236.588 milliliters.
Cups to pints, preset
Convert cups to pints instantly: 1 cup = 0.5 pints.
Cups to quarts, preset
Convert cups to quarts instantly: 1 cup = 0.25 quarts.
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Enter a value, pick the units, and the conversion updates live in your browser. Nothing is uploaded and no server is used.
1 fl oz = 0.125 cup
0.125 cup
All conversions run locally with double-precision math. Values are rounded for display only.