Convert US Gallons to Cubic Inches
Convert US gallons to cubic inches instantly. Type a value below, check the formula and table, then see how the same gal (US) to in³ conversion looks as a single line in Notes Calculator.
US Gallons to Cubic Inches formula
One US gallon is 231 cubic inches, so in³ = gal (US) × 231. For the reverse, multiply cubic inches by 0.004329, or use the Cubic Inches to US Gallons converter.
US Gallons to Cubic Inches conversion table
| US Gallons (gal (US)) | Cubic Inches (in³) |
|---|---|
| 1 | 231 |
| 2 | 462 |
| 5 | 1,155 |
| 10 | 2,310 |
| 20 | 4,620 |
| 25 | 5,775 |
| 50 | 11,550 |
| 100 | 23,100 |
| 250 | 57,750 |
| 500 | 115,500 |
| 1,000 | 231,000 |
US Gallons to Cubic Inches in Notes Calculator
Notes Calculator is a notepad that does math. Write 100 galUS to cubic inches on any line and the answer appears beside it. Change the number and the result follows. The same works with in and as, and with values stored in variables, so a whole estimate can mix US gallons and cubic inches without a separate converter.
| Note | Result |
|---|---|
| 100 galUS to cubic inches | 23,100.00 in³ |
| 100 galUS in cubic inches | 23,100.00 in³ |
| 10 cubic inches as galUS | 0.04 galUS |
See the unit conversion docs for mixing units in one expression, or open the free web app and try it.
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FAQ
Frequently asked questions
- One US gallon equals 231 cubic inches. To convert US gallons to cubic inches, multiply by 231; to go back, multiply by 0.004329.
- Type the value, the unit, and the target unit on one line: 100 galUS to cubic inches. The keywords to, in, and as all work, and the result updates as you type. You can also keep the value in a variable and convert it later.
- Yes. The converter on this page is free, and Notes Calculator has a free plan for the web, Mac, Windows, Linux, and Android with the same unit conversions built in.
How many cubic inches are in one US gallon?
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Convert US gallons to cubic inches without leaving your notes.
Notes Calculator is free to start and runs in your browser. Units, currencies, percentages, and variables in one plain-text notepad.
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