Convert US Dry Gallon to Imperial Gallon
Convert us dry gallons to imperial gallons instantly. 1 us dry gallon = 0.9689389719 imperial gallon — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Imperial Gallon to US Dry Gallon converter for the reverse conversion.
Units explained
US Dry Gallon
A US dry gallon is 1/8 of a US bushel (4.40488 L).
Based on the historic Winchester bushel of 2,150.42 cubic inches.
Used for dry commodities such as grains and berries.
Winchester measure.
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 Dry Gallon to Imperial Gallon conversion formula
The relationship between us dry gallons and imperial gallons:
To convert us dry gallons to imperial gallons, multiply the value in us dry gallons by 0.9689389719. To reverse, multiply imperial gallons by 1.0320567435.
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 Dry Gallon converter for the reverse direction.
Step-by-step: convert us dry gallons to imperial gallons
- Write down the value in us dry gallons (dry gal).
- Multiply that value by the factor 0.9689389719.
- The product is the equivalent value in imperial gallons (gal).
- To reverse, multiply the imperial gallon value by 1.0320567435.
Worked examples
Example 1 — Convert 1 dry gal to gal:
1 × 0.9689389719 = 0.9689389719 gal
Example 2 — Convert 100 dry gal to gal:
100 × 0.9689389719 = 96.8938971921 gal
Real-world example — Postcard and small-object dimensions
A postcard is about 5 us dry gallons wide. Converting to imperial gallons is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 dry gal × 0.9689389719 = 4.8446948596 gal
Real-world example — Ruler-scale measurements
A 30-us dry gallon school ruler converts cleanly to imperial gallons — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 dry gal × 0.9689389719 = 29.0681691576 gal
Real-world example — Hardware-scale dimensions
A 10-us dry gallon fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between us dry gallons and imperial gallons daily when mixing metric and imperial tools.
10 dry gal × 0.9689389719 = 9.6893897192 gal
US Dry Gallon to Imperial Gallon conversion table
Standard reference values for converting us dry gallons to imperial gallons:
| US Dry Gallon [dry gal] | Imperial Gallon [gal] |
|---|---|
| 0.01 | 0.0096893897 |
| 0.1 | 0.0968938972 |
| 1 | 0.9689389719 |
| 2 | 1.9378779438 |
| 3 | 2.9068169158 |
| 4 | 3.8757558877 |
| 5 | 4.8446948596 |
| 10 | 9.6893897192 |
| 20 | 19.3787794384 |
| 30 | 29.0681691576 |
| 40 | 38.7575588768 |
| 50 | 48.446948596 |
| 100 | 96.8938971921 |
| 500 | 484.4694859605 |
| 1000 | 968.9389719209 |
Frequently asked questions
How many imperial gallons is 1 us dry gallon?
How do I convert us dry gallons to imperial gallons?
How do I convert imperial gallons back to us dry gallons?
How many imperial gallons is 100 us dry gallons?
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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 dry gal = 0.9689389719 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 Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.