How do I convert m³ to gal?

Use the formula shown above or enter a value to see m³ converted to gal instantly.

What is the formula for m³ to gal?

The converter calculates gal by applying the category-specific conversion factor for Volume.

When should I use m³ vs gal?

m³ and gal are both part of the Volume category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Volume Converter & Liquid Reference

Convert m³ to gal

Use the live converter below to translate between Cubic Meter (m³) and Gallon (US) (gal). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

m³ → gal

Cubic Meter

m³

Gallon (US)

264.1721

gal

Rounded result (4 decimals max)

Formula

1 m³ = 264.1721 gal

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from gal to m³.

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m³ to gal quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Cubic Meter (m³)	Gallon (US) (gal)
0.25 m³	66.043 gal
0.5 m³	132.086 gal
1 m³	264.1721 gal
2 m³	528.3441 gal
5 m³	1,320.8603 gal
10 m³	2,641.7205 gal
25 m³	6,604.3013 gal
100 m³	26,417.2052 gal