Fluid Ounce (US) to Cup (US) Converter
Convertisseur de Volume Gratuit, Convertissez Litres, Gallons, Onces Liquides, Tasses et Millilitres
Fluid Ounce (US)
- Symbol
- fl oz
- System
- Metric/Imperial
- Dimension
- Various
Cup (US)
- Symbol
- cup
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Fluid Ounce (US) | Cup (US) | Cup (US) | Fluid Ounce (US) |
|---|---|---|---|
| 1 | 0.125 | 1 | 8 |
| 2 | 0.25 | 2 | 16 |
| 3 | 0.375 | 3 | 24 |
| 5 | 0.625 | 5 | 40 |
| 10 | 1.25 | 10 | 80 |
| 25 | 3.125 | 25 | 200 |
| 50 | 6.25 | 50 | 400 |
| 100 | 12.5 | 100 | 800 |
| 500 | 62.5 | 500 | 4000 |
| 1000 | 125 | 1000 | 8000 |
Conversion Formula
Cup (US) = Fluid Ounce (US) × 0.125
Fluid Ounce (US) = Cup (US) × 8
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 0.125.
How to convert Fluid Ounce (US) to Cup (US)
Multiply the value in fluid ounce (us) by 0.125 to get cup (us). For example, 5 Fluid Ounce (US) = 0.625 Cup (US). All results in the volume converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 0.12 too early — keep full precision until the final display. For volume, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Cup (US) in 1 Fluid Ounce (US)?
- 1 Fluid Ounce (US) = 0.125 Cup (US).
- How many Fluid Ounce (US) in 1 Cup (US)?
- 1 Cup (US) = 8 Fluid Ounce (US).
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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