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Gallon to Cubic Meter Converter

Convert gallons to cubic meters online. 1 gal = 0.00378541 m³. Free, instant Gallon-to-Cubic Meter converter. 100% in your browser, no uploads.

Gallon → Cubic Meter

1 gal = 0.00378541 m³

Gallon to Cubic Meter conversion table

Gallon (gal)Cubic Meter (m³)
1 gal0.00378541 m³
2 gal0.00757082 m³
5 gal0.01892706 m³
10 gal0.03785412 m³
25 gal0.09463529 m³
50 gal0.18927059 m³
100 gal0.37854118 m³
  • Instant, live Gallon ↔ Cubic Meter conversion
  • Accurate to the exact conversion factor
  • Converts in both directions
  • Reference table of common values
  • 100% private — runs entirely in your browser
  • Free, no sign-up, works offline

How to use the Gallon to Cubic Meter Converter

  1. 1

    Type the number of gallons in the first box.

  2. 2

    Read the equivalent value in cubic meters instantly in the second box.

  3. 3

    Or type a Cubic Meter value to convert back to gallons — it works both ways.

  4. 4

    Copy the result, or check the reference table for common conversions.

About the Gallon to Cubic Meter Converter

The ByteTools Gallon to Cubic Meter Converter changes gallons into cubic meters instantly. One Gallon equals 0.00378541 Cubic Meters (m³), and the tool applies that exact factor as you type so you get a precise answer every time.

Volume conversions are everyday tasks in cooking and baking, chemistry, fuel and drinks, bridging metric litres and US customary cups and gallons. Everything is calculated locally in your browser — nothing is uploaded — so it is fast, private and works offline. Enter a number in either box to convert both ways, and use the table for common Gallon-to-Cubic Meter values at a glance.

Frequently asked questions

How many Cubic Meters are in a Gallon?

One Gallon equals 0.00378541 Cubic Meters (m³). To convert, multiply the number of Gallons by 0.00378541. For example, 10 Gallons = 0.03785412 Cubic Meters.

What is the formula to convert Gallons to Cubic Meters?

Multiply the Gallon value by 0.00378541 to get Cubic Meters. In symbols, m³ = gal × 0.00378541. This converter applies the exact factor automatically so you never round by hand.

How do I convert Cubic Meters back to Gallons?

Divide by 0.00378541, or multiply by 264.172052. You can also use our Cubic Meter to Gallon converter for the reverse direction — it uses the same exact factor.

Is this Gallon to Cubic Meter converter free and private?

Yes. The conversion runs entirely in your browser with JavaScript — nothing you type is uploaded, logged or stored. It is completely free, needs no sign-up and keeps working offline once loaded.

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