Volume
gal (UK)toac·in
Convert imperial gallons (gal (UK)) to acre-inches (ac·in).
Factor1 gal (UK) = 4.42269e-5 ac·in
Converter
gal (UK)
Accepts numbers or expressions, e.g. 150 + 14.7
Result
ac·in
Rendered to 6 significant figures.
Formula
Formula
ac·in = gal (UK) × 4.42269e-5
Multiply any value in imperial gallons by 4.42269e-5 to obtain the value in acre-inches.
Worked example
Convert 22000 gal (UK) to ac·in.
- 01Start with 22000 gal (UK).
- 02Multiply by the conversion factor: 22000 × 4.42269e-5 = 0.972992 ac·in.
Result22000 gal (UK) = 0.972992 ac·in
Conversion table
| gal (UK) | ac·in |
|---|---|
| 1 | 4.4227e-5 |
| 2 | 8.8454e-5 |
| 5 | 0.00022113 |
| 10 | 0.00044227 |
| 20 | 0.00088454 |
| 50 | 0.0022113 |
| 100 | 0.0044227 |
| 200 | 0.0088454 |
| 500 | 0.022113 |
| 1000 | 0.044227 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from gal (UK) to ac·in?
1 gal (UK) equals 4.42269e-5 ac·in. To convert, multiply the value in imperial gallons by 4.42269e-5.
How do I convert 1 gal (UK) to ac·in?
1 gal (UK) = 4.42269e-5 ac·in. For any value, multiply by 4.42269e-5.
How do I convert ac·in back to gal (UK)?
Divide by the same factor — or equivalently, multiply by 22610.67. So 1 ac·in = 22610.7 gal (UK).
When would I need to convert imperial gallon to acre-inch?
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).