US Gallon to Cubic Foot Converter
Convert US gallons to cubic feet instantly. Free, bidirectional, and fully in-browser.
About this tool
US Gallon to Cubic Foot Converter
Convert US gallons to cubic feet instantly. Free, bidirectional, and fully in-browser.
1 US gallon equals 0.1336805556 cubic feet — enter any US gallon value to convert it to cubic feet instantly. This US Gallon to Cubic Foot converter is a client-side tool: it applies a single multiplication (ft³ = gal × 0.1336805556) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert cubic feet back to US gallons. A reference table lists common US gallon values already converted, and nothing you enter is sent to a server.
How to use US Gallon to Cubic Foot Converter
- 1
Open US Gallon to Cubic Foot Converter on AltFTool — it loads instantly in your browser.
- 2
Type the value you want to convert into the US Gallon field.
- 3
Read the equivalent in cubic feet in the result field, and copy it if needed.
- 4
Use the decimal-places slider for more or less precision, or press swap to convert cubic feet to US gallons.
Why use US Gallon to Cubic Foot Converter
Instant, both ways
The result updates as you type, and the swap button flips the conversion to cubic foot → US gallon without reloading.
Exact Volume math
The conversion uses the precise factor (ft³ = gal × 0.1336805556), so the number matches a manual calculation to the decimal places you choose.
Adjustable precision
A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.
Private and free
Everything runs locally in your browser — no upload, no account, no limit on conversions.
Common use cases
- Converting a US gallon measurement to cubic feet for a spec, listing, or report.
- Checking US gallon↔cubic foot figures while comparing products, datasets, or documentation.
- Learning the US gallon-to-cubic foot relationship from the worked formula and the common-value table.
Frequently asked questions
How many cubic feet are in a US gallon?
One US gallon is 0.1336805556 cubic feet. Multiply the US gallon value by 0.1336805556 to convert. For example, 10 gal = 1.336805556 ft³.
What is the formula to convert US gallons to cubic feet?
ft³ = gal × 0.1336805556. This tool applies it automatically and shows a worked example: 10 gal = 1.336805556 ft³.
Can it convert cubic feet back to US gallons?
Yes. Press the swap button, or type into the cubic foot field, and the tool converts cubic feet to US gallons using the inverse of the same relationship.
Is the conversion accurate?
It uses the standard volume and capacity definition (ft³ = gal × 0.1336805556), not a rounded approximation, so results are exact to the number of decimal places you select.
Does this work offline and stay private?
Yes. The converter is a browser-side script with no network calls: your values are never uploaded, and once the page has loaded it keeps working without a connection.
Embed this tool on your site
Add the US Gallon to Cubic Foot Converter widget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
<iframe src="https://www.altftool.com/embed/widget/us-gallons-to-cubic-feet-converter"
title="US Gallon to Cubic Foot Converter — free AltFTool widget"
width="100%" height="640" style="border:0;border-radius:12px;overflow:hidden"
loading="lazy" referrerpolicy="no-referrer-when-downgrade" allow="clipboard-write"></iframe>
<p style="font-size:12px;margin:4px 0 0">Widget by <a href="https://www.altftool.com/tools/all/us-gallons-to-cubic-feet-converter?utm_source=embed&utm_medium=widget" rel="nofollow">AltFTool — free online tools</a></p>