Ounce to Cup of Flour

Free instant ounce to cup of flour converter. 1 oz = 0.226796 cup.

=⇄
0.226796
Formula
1 oz = 0.226796 cup

Common Ounce to Cup of Flour values

Common Ounce to Cup of Flour conversion values.
Ounce (oz)Cup of Flour (cup)
10.226796
51.13398
102.26796
255.6699
5011.3398
10022.6796
500113.398
1000226.796

How does Ounce to Cup of Flour conversion work?

Type a value in the Ounce (oz) field and the equivalent in Cup of Flour (cup) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.

Ounce. 1 ounce equals about 28.35 grams. Used for ingredient weighing in US recipes.

Cup of Flour. 1 US cup of all-purpose flour weighs about 125 grams (4.4 oz). Sift before measuring for greatest accuracy.

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🎯 Accurate conversions

Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.

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Frequently asked

What is the formula for converting Ounce to Cup of Flour?+
The formula is: 1 oz = 0.226796 cup. Type any value into the calculator above and the result appears instantly.
How do I convert Cup of Flour back to Ounce?+
Click the swap button (⇄) above to go to the Cup of Flour → Ounce converter, or use the inverse formula derived from the one shown.
How accurate is the conversion?+
Conversion factors used here are exact rational values from NIST SP 811 and the BIPM SI brochure (e.g. 1 ft = 0.3048 m exactly, 1 lb = 0.45359237 kg exactly). Trailing-digit differences vs hand calculation come only from binary floating-point representation, never from the conversion factor itself.
Where do these conversion factors come from?+
Length and mass factors come from the 1959 international yard-and-pound agreement; SI base units (metre, kilogram, second, kelvin) come from the 2019 BIPM redefinition; energy and pressure factors are NIST SP 811 reference values. Each editorial section above lists the specific source for that category.
Can I copy the conversion factor for use elsewhere?+
Yes. The factor in the formula above is the exact rational value used internally; copying it into Excel or another tool reproduces the result to floating-point precision.

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