Volume
in³togal (UK)
Convert cubic inches (in³) to imperial gallons (gal (UK)).
Factor1 in³ = 0.00360465 gal (UK)
Converter
in³
Accepts numbers or expressions, e.g. 150 + 14.7
Result
gal (UK)
Rendered to 6 significant figures.
Formula
Formula
gal (UK) = in³ × 0.00360465
Multiply any value in cubic inches by 0.00360465 to obtain the value in imperial gallons.
Worked example
Convert 1000 in³ to gal (UK).
- 01Start with 1000 in³.
- 02Multiply by the conversion factor: 1000 × 0.00360465 = 3.60465 gal (UK).
Result1000 in³ = 3.60465 gal (UK)
Conversion table
| in³ | gal (UK) |
|---|---|
| 1 | 0.0036047 |
| 2 | 0.0072093 |
| 5 | 0.018023 |
| 10 | 0.036047 |
| 20 | 0.072093 |
| 50 | 0.18023 |
| 100 | 0.36047 |
| 200 | 0.72093 |
| 500 | 1.8023 |
| 1000 | 3.6047 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from in³ to gal (UK)?
1 in³ equals 0.00360465 gal (UK). To convert, multiply the value in cubic inches by 0.00360465.
How do I convert 1 in³ to gal (UK)?
1 in³ = 0.00360465 gal (UK). For any value, multiply by 0.00360465.
How do I convert gal (UK) back to in³?
Divide by the same factor — or equivalently, multiply by 277.4194. So 1 gal (UK) = 277.419 in³.
When would I need to convert cubic inch to imperial gallon?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).