Cubic Inches to UK Fluid Ounces (in³ to imp fl oz) Converter
1 cubic inch (in³) = 0.576744 UK fluid ounces (imp fl oz). To convert cubic inches to UK fluid ounces, multiply by 0.576744: 25 in³ × 0.576744 = 14.4186 imp fl oz.
Quick facts
- 1 in³ = 0.576744 imp fl oz
- 1 imp fl oz = 1.73387 in³
- Formula: imp fl oz = in³ × 0.576744
- Quick estimate: multiply by about 0.58
How to convert cubic inches to UK fluid ounces
- Take the value in cubic inches.
- Multiply it by 0.576744 (the number of UK fluid ounces in one cubic inch).
- Round the answer to a sensible number of decimal places.
Worked example: 25 in³ × 0.576744 = 14.4186 imp fl oz.
To convert UK fluid ounces back to cubic inches, multiply by 1.73387, or divide by 0.576744.
Source: NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units).
Cubic Inches to UK Fluid Ounces conversion table
| Cubic Inches [in³] | UK Fluid Ounces [imp fl oz] |
|---|---|
| 0.01 in³ | 0.0057674402 imp fl oz |
| 0.1 in³ | 0.0576744024 imp fl oz |
| 1 in³ | 0.576744024 imp fl oz |
| 2 in³ | 1.153488048 imp fl oz |
| 3 in³ | 1.730232072 imp fl oz |
| 5 in³ | 2.8837201199 imp fl oz |
| 10 in³ | 5.7674402399 imp fl oz |
| 20 in³ | 11.5348804797 imp fl oz |
| 50 in³ | 28.8372011993 imp fl oz |
| 100 in³ | 57.6744023985 imp fl oz |
| 1000 in³ | 576.7440239854 imp fl oz |
in³ to imp fl oz chart from 1 to 100
- 1 in³ 0.576744 imp fl oz
- 2 in³ 1.15349 imp fl oz
- 3 in³ 1.73023 imp fl oz
- 4 in³ 2.30698 imp fl oz
- 5 in³ 2.88372 imp fl oz
- 6 in³ 3.46046 imp fl oz
- 7 in³ 4.03721 imp fl oz
- 8 in³ 4.61395 imp fl oz
- 9 in³ 5.1907 imp fl oz
- 10 in³ 5.76744 imp fl oz
- 11 in³ 6.34418 imp fl oz
- 12 in³ 6.92093 imp fl oz
- 13 in³ 7.49767 imp fl oz
- 14 in³ 8.07442 imp fl oz
- 15 in³ 8.65116 imp fl oz
- 16 in³ 9.2279 imp fl oz
- 17 in³ 9.80465 imp fl oz
- 18 in³ 10.3814 imp fl oz
- 19 in³ 10.9581 imp fl oz
- 20 in³ 11.5349 imp fl oz
- 25 in³ 14.4186 imp fl oz
- 30 in³ 17.3023 imp fl oz
- 35 in³ 20.186 imp fl oz
- 40 in³ 23.0698 imp fl oz
- 45 in³ 25.9535 imp fl oz
- 50 in³ 28.8372 imp fl oz
- 55 in³ 31.7209 imp fl oz
- 60 in³ 34.6046 imp fl oz
- 65 in³ 37.4884 imp fl oz
- 70 in³ 40.3721 imp fl oz
- 75 in³ 43.2558 imp fl oz
- 80 in³ 46.1395 imp fl oz
- 85 in³ 49.0232 imp fl oz
- 90 in³ 51.907 imp fl oz
- 95 in³ 54.7907 imp fl oz
- 100 in³ 57.6744 imp fl oz
UK Fluid Ounces to Cubic Inches conversion table
| UK Fluid Ounces [imp fl oz] | Cubic Inches [in³] |
|---|---|
| 0.01 imp fl oz | 0.0173387145 in³ |
| 0.1 imp fl oz | 0.1733871455 in³ |
| 1 imp fl oz | 1.7338714549 in³ |
| 2 imp fl oz | 3.4677429099 in³ |
| 3 imp fl oz | 5.2016143648 in³ |
| 5 imp fl oz | 8.6693572747 in³ |
| 10 imp fl oz | 17.3387145495 in³ |
| 20 imp fl oz | 34.677429099 in³ |
| 50 imp fl oz | 86.6935727474 in³ |
| 100 imp fl oz | 173.3871454948 in³ |
| 1000 imp fl oz | 1733.8714549476 in³ |
Cubic Inches vs UK Fluid Ounces
| Cubic Inch | UK Fluid Ounce | |
|---|---|---|
| Symbol | in³ | imp fl oz |
| Equals | 1 in³ = 0.576744 imp fl oz | 1 imp fl oz = 1.73387 in³ |
What is a cubic inch?
The volume of a cube with 1-inch sides. Used in the US for small mechanical parts and engine displacement.
What is a UK fluid ounce?
A UK imperial unit equal to 1/20 of an imperial pint (exactly 28.4130625 ml). Used in the UK and Canada on older recipes, drinks measures and some bottle labels.
Who Converts Cubic Inches to UK Fluid Ounces?
Cubic inches are used mainly in the United States, while UK fluid ounces are used mainly in the UK (pub pints, fuel economy in mpg) and older Canadian recipes. Because the two units come from different systems, Americans, Britons and Canadians often need it when buying from each other online, following each other's recipes or instructions, or filling in official forms.
How big is 1 in³ compared with 1 imp fl oz?
1 in³ is only 0.576744 of 1 imp fl oz: you need 1.73387 cubic inches to make 1 imp fl oz, so the number gets smaller when you convert. The two are close in size: 1 imp fl oz is about 73.4% larger than 1 in³, which is easy to miss.
Cubic Inches to UK Fluid Ounces without a calculator
- In your head: multiply by 0.6 (about 4% off). 350 in³ × 0.6 ≈ 210 imp fl oz.
- Closer estimate: multiply by 0.58 (within 0.56%).
- Or divide: divide by 1.7 (within 2%), which is often easier than multiplying by a small decimal.
- Fraction trick: multiply by 4, then divide by 7 (within 0.92%).
Real-world in³ to imp fl oz examples
| Example | Cubic Inches | UK Fluid Ounces |
|---|---|---|
| A 350 cubic-inch V8 engine | 350 in³ | 201.86 imp fl oz |
| One US gallon | 231 in³ | 133.228 imp fl oz |
| One imperial pint | 34.6774 in³ | 20 imp fl oz |
| Half a pint | 17.3387 in³ | 10 imp fl oz |
| One imperial fluid ounce | 1.73387 in³ | 1 imp fl oz |
How exact is the in³ to imp fl oz factor?
The factor is exact by definition, so any error comes only from rounding. Keep at least 4 significant figures for school work, and the full factor for anything legal or commercial.
Mistakes to avoid
- This page uses the imperial (UK) measure. A US measure with the same name is smaller, so make sure your source is British or older Canadian.
- Volume factors are the cube of length factors, so a small rounding error in the length becomes three times larger in the volume.
What people convert next
Next, you might want cubic inches to us fluid ounces, uk fluid ounces to milliliters and uk fluid ounces to us fluid ounces. The full volume converter lists every unit.
On pakmath.com, the scientific calculator is a useful next step, as is the percentage calculator; Adzita offers a free mulch calculator.
Frequently asked questions
How many UK fluid ounces are in a cubic inch?
There are 0.576744 UK fluid ounces in 1 cubic inch (1 in³ = 0.576744024 imp fl oz).
How many cubic inches are in a UK fluid ounce?
There are 1.73387 cubic inches in 1 UK fluid ounce (1 imp fl oz = 1.7338714549 in³).
How do I convert cubic inches to UK fluid ounces?
Multiply by 0.576744, or divide by 1.73387 if that is easier. Example: 10 in³ = 5.76744 imp fl oz.
What is 10 in³ in UK fluid ounces?
10 in³ = 5.76744 imp fl oz.
What is 100 in³ in UK fluid ounces?
100 in³ = 57.6744 imp fl oz.
Is the in³ to imp fl oz conversion exact?
Yes. The factor comes from the official definitions of both units (NIST Handbook 44, Appendix C, and NIST SP 811 (US customary volume units)). Results are shown to up to 10 decimal places; round them to suit your purpose.
What is an easy way to convert cubic inches to UK fluid ounces?
In your head: multiply by 0.6 (about 4% off). 350 in³ × 0.6 ≈ 210 imp fl oz.
How many UK fluid ounces is 350 in³ (a 350 cubic-inch V8 engine)?
350 in³ = 201.86 imp fl oz.
How many cubic inches is one imperial fluid ounce (1 imp fl oz)?
1 imp fl oz = 1.73387 in³.
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