Convert Imperial Gallon to US Dry Gallon
Convert imperial gallons to us dry gallons instantly. 1 imperial gallon = 1.0320567435 us dry gallon — use the live calculator, the exact formula, a conversion table and worked examples. Also check the US Dry Gallon to Imperial Gallon converter for the reverse conversion.
Units explained
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
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 to US Dry Gallon conversion formula
The relationship between imperial gallons and us dry gallons:
To convert imperial gallons to us dry gallons, multiply the value in imperial gallons by 1.0320567435. To reverse, multiply us dry gallons by 0.9689389719.
How to use this converter
Type a value into the calculator. The result in us dry 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 US Dry Gallon to Imperial Gallon converter for the reverse direction.
Step-by-step: convert imperial gallons to us dry gallons
- Write down the value in imperial gallons (gal).
- Multiply that value by the factor 1.0320567435.
- The product is the equivalent value in us dry gallons (dry gal).
- To reverse, multiply the us dry gallon value by 0.9689389719.
Worked examples
Example 1 — Convert 1 gal to dry gal:
1 × 1.0320567435 = 1.0320567435 dry gal
Example 2 — Convert 100 gal to dry gal:
100 × 1.0320567435 = 103.2056743489 dry gal
Real-world example — Hardware-scale dimensions
A 10-imperial gallon fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between imperial gallons and us dry gallons daily when mixing metric and imperial tools.
10 gal × 1.0320567435 = 10.3205674349 dry gal
Real-world example — Postcard and small-object dimensions
A postcard is about 5 imperial gallons wide. Converting to us dry gallons is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 gal × 1.0320567435 = 5.1602837174 dry gal
Real-world example — Ruler-scale measurements
A 30-imperial gallon school ruler converts cleanly to us dry gallons — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 gal × 1.0320567435 = 30.9617023047 dry gal
Imperial Gallon to US Dry Gallon conversion table
Standard reference values for converting imperial gallons to us dry gallons:
| Imperial Gallon [gal] | US Dry Gallon [dry gal] |
|---|---|
| 0.01 | 0.0103205674 |
| 0.1 | 0.1032056743 |
| 1 | 1.0320567435 |
| 2 | 2.064113487 |
| 3 | 3.0961702305 |
| 4 | 4.128226974 |
| 5 | 5.1602837174 |
| 10 | 10.3205674349 |
| 20 | 20.6411348698 |
| 30 | 30.9617023047 |
| 40 | 41.2822697395 |
| 50 | 51.6028371744 |
| 100 | 103.2056743489 |
| 500 | 516.0283717444 |
| 1000 | 1032.0567434887 |
Frequently asked questions
How many us dry gallons is 1 imperial gallon?
How do I convert imperial gallons to us dry gallons?
How do I convert us dry gallons back to imperial gallons?
How many us dry gallons is 100 imperial gallons?
Popular volume unit conversions
Convert Imperial Gallon to other volume units
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Metric / SI (15 units)
US Customary (Liquid) (15 units)
US Customary (Dry) (5 units)
Imperial (UK) (13 units)
Cubic (length-derived) (4 units)
Cooking / Culinary (5 units)
Sources & references
Conversion factor (1 gal = 1.0320567435 dry 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.