What is 5 oz to cups?
Type either value and the other one updates as you type.
- Cups (cup)
- 0.625
5 fl oz = 0.625 cup.
Cups (cup): 0.625. 5 fl oz = 0.625 cup.
Cups (cup) by fluid ounces (fl oz)
How to calculate
Converts fluid ounces (fl oz) to cups (cup) and back, with the exact unit definitions.
Example with the default inputs (Fluid ounces (fl oz) 5): 5 fl oz = 0.625 cup.
Formula: cup = fl oz × 0.125 (the same as fl oz ÷ 8)
- 1 fluid ounce = 0.125 cups, from the exact definitions in NIST SP 811.
- Cups, ounces, tablespoons, pints, quarts, and gallons are US customary units: 1 US cup is 8 US fluid ounces.
- Ounces here are US fluid ounces, a volume. An ounce of weight (1/16 lb) is a different unit.
- The answer shows at most 6 decimal places; the calculation keeps full precision.
Worked examples
Each example is checked against the calculator on every build.
- Fluid ounces (fl oz) 1 gives Cups (cup) 0.125.Source: exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Fluid ounces (fl oz) 8 gives Cups (cup) 1.Source: exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Cups (cup) 1 gives Fluid ounces (fl oz) 8.Source: exact unit definitions in NIST SP 811 (2008), Appendix B.8
Other questions people ask
What is 5 oz in cups?
5 fl oz is 0.625 cup. The formula is cup = fl oz × 0.125 (the same as fl oz ÷ 8).
How many cups are in a fluid ounce?
1 fluid ounce is 0.125 cups, from the exact unit definitions (NIST SP 811).
How do I convert oz to cups?
Multiply by 0.125: cup = fl oz × 0.125 (the same as fl oz ÷ 8). For example, 5 fl oz × 0.125 = 0.625 cup.
How do I convert cups back to oz?
Multiply by 8, or type the cups into the second box and the converter works it out. 1 cup is 8 fluid ounces.
Is an ounce here a weight or a volume?
A volume: the US fluid ounce, 1/8 of a US cup (29.57 mL). An ounce of weight (1/16 lb, 28.35 g) only matches a fluid ounce for water and liquids like it.