Convert 300 impgal to gal

How to convert imperial gallons to US gallons

1. Formula: US gallons = imperial gallons × 1.20095
2. Put in the value: 300 imperial gallons.
3. Result: 360.284978 US gallons.

Imperial gallons to US gallons table

Converting the other way: US gallons to imperial gallons

imperial gallons = US gallons × 0.83267418. So 360.284978 US gallons is back to 300 imperial gallons; one US gallon is 0.83267418 imperial gallons. See the US gallons to imperial gallons table.

Quick estimate in your head

For a rough answer, multiply by about 1.2: 300 × 1.2 ≈ 360 gal, against the exact 360.284978 gal (0.1% out). Good enough to check that a calculated result is sensible.

Common mistakes

The usual slip is using the factor the wrong way round. A imperial gallon is bigger than a US gallon, so the number of US gallons must come out larger than the number of imperial gallons. If your answer goes the other way, divide instead of multiplying.

About the units

Imperial gallon (impgal) and US gallon (gal) are both units of volume. One imperial gallon equals 1.20095 US gallons, and one US gallon equals 0.83267418 imperial gallons. Results on this page are rounded for display; the conversion itself uses the exact definitions.

Volume conversions come up in recipes, fuel economy, drink and bottle sizes, garden and pool water, and engine sizes.

300 imperial gallons in other units

The most readable unit for this amount is cubic meters (1.363827).

• 1,363,827 ml
• 1,363.83 l
• 1.363827 m3
• 276,698.86 tsp
• 92,232.95 tbsp
• 46,116.48 floz
• 5,764.56 cup
• 2,882.28 pt
• 1,441.14 qt
• 360.284978 gal