Convert US Gill to Imperial Gallon
Convert us gills to imperial gallons instantly. 1 us gill = 0.0260210683 imperial gallon — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Imperial Gallon to US Gill converter for the reverse conversion.
Units explained
US Gill
A US gill is one quarter of a US pint (118.294 mL).
An old English unit for small servings of liquor.
Largely historical; survives in some bartending and pharmacy contexts.
English customary.
Imperial Gallon
The imperial gallon is defined as exactly 4.54609 liters.
Set by the British Weights and Measures Act of 1824 as the volume of 10 lb of water.
Used for fuel and beverages in the UK and Commonwealth.
UK, 1824.
US Gill to Imperial Gallon conversion formula
The relationship between us gills and imperial gallons:
To convert us gills to imperial gallons, multiply the value in us gills by 0.0260210683. To reverse, multiply imperial gallons by 38.4303976162.
How to use this converter
Type a value into the calculator. The result in imperial gallons updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Imperial Gallon to US Gill converter for the reverse direction.
Step-by-step: convert us gills to imperial gallons
- Write down the value in us gills (gi).
- Multiply that value by the factor 0.0260210683.
- The product is the equivalent value in imperial gallons (gal).
- To reverse, multiply the imperial gallon value by 38.4303976162.
Worked examples
Example 1 — Convert 1 gi to gal:
1 × 0.0260210683 = 0.0260210683 gal
Example 2 — Convert 100 gi to gal:
100 × 0.0260210683 = 2.602106827 gal
Real-world example — Plastic film and laminate thickness
A 500-us gill sheet is a typical spec for ID-card laminates and film overlays. Converting to imperial gallons aligns the value with the unit most CAD systems and material datasheets prefer.
500 gi × 0.0260210683 = 13.0105341348 gal
Real-world example — Packaging gauge
A 4-us gill plastic bag thickness is a common spec for grocery and freezer bags. Converting from us gills to imperial gallons is what packaging buyers do whenever they bridge US and metric supplier quotes.
4 gi × 0.0260210683 = 0.1040842731 gal
US Gill to Imperial Gallon conversion table
Standard reference values for converting us gills to imperial gallons:
| US Gill [gi] | Imperial Gallon [gal] |
|---|---|
| 0.01 | 0.0002602107 |
| 0.1 | 0.0026021068 |
| 1 | 0.0260210683 |
| 2 | 0.0520421365 |
| 3 | 0.0780632048 |
| 4 | 0.1040842731 |
| 5 | 0.1301053413 |
| 10 | 0.2602106827 |
| 20 | 0.5204213654 |
| 30 | 0.7806320481 |
| 40 | 1.0408427308 |
| 50 | 1.3010534135 |
| 100 | 2.602106827 |
| 500 | 13.0105341348 |
| 1000 | 26.0210682697 |
Frequently asked questions
How many imperial gallons is 1 us gill?
How do I convert us gills to imperial gallons?
How do I convert imperial gallons back to us gills?
How many imperial gallons is 100 us gills?
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Metric / SI (3 units)
US Customary (Liquid) (1 units)
Imperial (UK) (1 units)
Cubic (length-derived) (1 units)
Sources & references
Conversion factor (1 gi = 0.0260210683 gal) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.