Convert Cubic Foot to US Dry Gallon
Convert cubic feet to us dry gallons instantly. 1 cubic foot = 6.4285116396 us dry gallon — use the live calculator, the exact formula, a conversion table and worked examples. Also check the US Dry Gallon to Cubic Foot converter for the reverse conversion.
Units explained
Cubic Foot
A cubic foot is the volume of a cube one foot on a side (28.3168 L).
Derived by cubing the international foot (0.3048 m).
Used for natural gas, refrigerators, shipping and HVAC.
1959 yard agreement.
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.
Cubic Foot to US Dry Gallon conversion formula
The relationship between cubic feet and us dry gallons:
To convert cubic feet to us dry gallons, multiply the value in cubic feet by 6.4285116396. To reverse, multiply us dry gallons by 0.1555570023.
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 Cubic Foot converter for the reverse direction.
Step-by-step: convert cubic feet to us dry gallons
- Write down the value in cubic feet (ft³).
- Multiply that value by the factor 6.4285116396.
- The product is the equivalent value in us dry gallons (dry gal).
- To reverse, multiply the us dry gallon value by 0.1555570023.
Worked examples
Example 1 — Convert 1 ft³ to dry gal:
1 × 6.4285116396 = 6.4285116396 dry gal
Example 2 — Convert 100 ft³ to dry gal:
100 × 6.4285116396 = 642.8511639587 dry gal
Real-world example — Hardware-scale dimensions
A 10-cubic foot fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between cubic feet and us dry gallons daily when mixing metric and imperial tools.
10 ft³ × 6.4285116396 = 64.2851163959 dry gal
Real-world example — Postcard and small-object dimensions
A postcard is about 5 cubic feet wide. Converting to us dry gallons is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 ft³ × 6.4285116396 = 32.1425581979 dry gal
Real-world example — Ruler-scale measurements
A 30-cubic foot 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 ft³ × 6.4285116396 = 192.8553491876 dry gal
Cubic Foot to US Dry Gallon conversion table
Standard reference values for converting cubic feet to us dry gallons:
| Cubic Foot [ft³] | US Dry Gallon [dry gal] |
|---|---|
| 0.01 | 0.0642851164 |
| 0.1 | 0.642851164 |
| 1 | 6.4285116396 |
| 2 | 12.8570232792 |
| 3 | 19.2855349188 |
| 4 | 25.7140465583 |
| 5 | 32.1425581979 |
| 10 | 64.2851163959 |
| 20 | 128.5702327917 |
| 30 | 192.8553491876 |
| 40 | 257.1404655835 |
| 50 | 321.4255819793 |
| 100 | 642.8511639587 |
| 500 | 3214.2558197933 |
| 1000 | 6428.5116395867 |
Frequently asked questions
How many us dry gallons is 1 cubic foot?
How do I convert cubic feet to us dry gallons?
How do I convert us dry gallons back to cubic feet?
How many us dry gallons is 100 cubic feet?
Popular volume unit conversions
Convert Cubic Foot to other volume units
Show all Cubic Foot conversions
Metric / SI (15 units)
US Customary (Liquid) (15 units)
US Customary (Dry) (5 units)
Imperial (UK) (14 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (5 units)
Sources & references
Conversion factor (1 ft³ = 6.4285116396 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 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.