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Cubic meters to US gallons (m³ to gal (US))
Convert cubic meters to US gallons: 1 m³ = 264.172 gal (US). Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.
Formula
1 m³ = 264.172 gal (US)
US gallons = cubic meters × 264.1720524 — reverse: cubic meters = US gallons × 0.003785411784
The factor is derived from the SI definitions of both units (base unit: L) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.
Worked examples
- 5 m³ = 1320.86 gal (US)
- 12.5 m³ = 3302.15 gal (US)
- 100 m³ = 26417.2 gal (US)
Cubic meters to US gallons conversion table
| Cubic meters (m³) | US gallons (gal (US)) |
|---|---|
| 1 | 264.172 |
| 2 | 528.344 |
| 3 | 792.516 |
| 4 | 1056.69 |
| 5 | 1320.86 |
| 6 | 1585.03 |
| 7 | 1849.2 |
| 8 | 2113.38 |
| 9 | 2377.55 |
| 10 | 2641.72 |
| 15 | 3962.58 |
| 20 | 5283.44 |
| 25 | 6604.3 |
| 30 | 7925.16 |
| 40 | 10566.9 |
| 50 | 13208.6 |
| 75 | 19812.9 |
| 100 | 26417.2 |
| 200 | 52834.4 |
| 250 | 66043 |
| 500 | 132086 |
| 1000 | 264172 |
FAQ
How many US gallons are in one cubic meter?
1 m³ = 264.172 gal (US). The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.
What is the formula to convert cubic meters to US gallons?
Multiply the value in cubic meters by 264.1720524: US gallons = cubic meters × 264.1720524. For example, 5 m³ = 1320.86 gal (US).
How do I convert US gallons back to cubic meters?
Multiply by the inverse factor 0.003785411784 (cubic meters = US gallons × 0.003785411784), or use the US gallons-to-cubic meters page.
Related conversions
Machine access
- API:
GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=m3&to_unit=gal_us - MCP: server
https://tttkmbb.com/mcp, toolconvert_unitswith{"value":5,"from_unit":"m3","to_unit":"gal_us"} - Markdown: https://tttkmbb.com/conversion/cubic-meters-to-gallons.md · JSON: https://tttkmbb.com/conversion/cubic-meters-to-gallons.json (add
?value=for a result) · Units: /api/v1/units?quantity=volume - OpenAPI operationId:
convert_units. Freshness:static. Authentication: none.