m³ to US gallons – convert cubic metres to US gallons
Convert cubic metres to US gallons (m³ to US gal) for water tanks, swimming pools, fuel storage and industrial process volumes. This page opens the main volume converter with m³ → US gallons pre-selected.
Open the interactive m³ → US gal converter:
Use main converter (m³ → US gal) or switch to US gal → m³Quick reference: m³ to US gallons
Because 1 US gallon = 0.003785411784 m³, one cubic metre is about 264.172 US gallons.
| Cubic metres (m³) | US gallons (approx.) |
|---|---|
| 0.5 m³ | 132.1 US gal |
| 1 m³ | 264.2 US gal |
| 2 m³ | 528.3 US gal |
| 5 m³ | 1,320.9 US gal |
| 10 m³ | 2,641.7 US gal |
Why convert m³ to US gallons?
- Tank or pool size given in m³, but equipment is rated in US gal.
- Comparing international specs for water treatment or brewing.
- Checking whether an existing pump or filter is correctly sized.
- Communicating volumes to teams who think in US gallons, not m³.
Metric drawings vs US equipment
Engineers often draw systems in m³ while suppliers and datasheets quote US gallons. This converter links the two so you can sanity-check any numbers quickly.
m³ to US gallons FAQ
- How many US gallons are in 1 m³?
- About 264.17 US gallons, using the exact factor 1 US gal = 0.003785411784 m³.
- Can I use this for diesel or fuel tanks?
- Yes – the conversion is purely geometric, so it works for any liquid stored in a tank.
- What if my spec uses UK gallons?
- Use the UK gallons ↔ m³ converter instead; UK gallons are larger than US gallons.