VOLUME CONVERSION
US fluid ounces to US cups converter
Convert us fluid ounces to us cups instantly.
Neutral presentation is active.
No regional currency, unit or language profile is applied. This choice does not convert values or change formulas, results, routes or legal guidance.
1 fl oz equals
0.125 cupInstant us fluid ounces to us cups conversionCalculated locally in your browser using the stated conversion formula.US fluid ounces to US cups conversion guide
Use this calculator when comparing measurements, checking specifications, planning travel, preparing materials or reading information published in another unit system. Enter any value above to receive the converted result immediately.
Worked example: 10 fl oz equals 1.25 cup. The displayed result is rounded for readability while the calculator retains full numeric precision.
About US fluid ounces and US cups
- US fluid ounces
- The US fluid ounce equals approximately 29.5735295625 millilitres. Imperial or US customary measurement, depending on the unit.
- US cups
- The US legal cup used here equals 240 millilitres only in some labelling contexts; this converter uses the catalogued 236.5882365 mL customary cup. Imperial or US customary measurement, depending on the unit.
Precision and common mistakes
This page uses the US fluid ounce definition. Recipe standards may define cups differently, so confirm the source convention. The calculator keeps the full catalogued factor internally and rounds only the displayed value.
- A US fluid ounce differs from an imperial fluid ounce and from an ounce of mass.
- US customary, US legal, metric and imperial cups are not interchangeable.
- Keep the original value and unit together when copying a result, especially when specifications use several measurement systems.
US fluid ounces to US cups table
1 fl oz0.125 cup
5 fl oz0.625 cup
10 fl oz1.25 cup
25 fl oz3.125 cup
50 fl oz6.25 cup
100 fl oz12.5 cup
Frequently asked questions
How do I convert us fluid ounces to us cups?
Multiply the us fluid ounces value by 0.125000000000. For example, 10 fl oz equals 1.25 cup.
Is this US fluid ounces to US cups conversion accurate?
The calculator uses the stated conversion relationship and keeps full internal precision before formatting the displayed answer. For regulated or safety-critical work, confirm the required rounding standard.
Can I use this converter on a phone?
Yes. The calculator is responsive, keyboard accessible and performs the conversion locally in a modern browser without requiring an account.
Related volume conversions
Save useful calculators here for a quick return. Nothing is sent to an account or server.
Verification and calculation details
- Purpose
- US fluid ounces to US cups converter
- Variables and units
- Use the labelled fields and units shown in the calculator. Results use those units unless a conversion is stated.
- Formula and method
- The exact formula and worked example are shown below. Deterministic formula executed locally in the browser.
- Assumptions
- Only entered values and stated assumptions are included. Local fees, rules and professional requirements are excluded unless explicitly shown.
- Engine version
- 1.0.0
- Production verification baseline
- Release 63 · source
998803f - Verification run
release-v63-2026-09-20- Last verified
- — Automated release checks passing
Read the Calculation Standard · Report a calculation or source issue
How this calculator works
US cups = US fluid ounces × 0.125000000000.
Important notes
Results are estimates based on the values entered. Confirm rates, prices, units and professional requirements that apply in your location. Review the Answer Atlas Calculation Standard and corrections policy for formula, privacy and correction rules.