Gallon to Milliliters Converter
Convert US gallons to milliliters (mL) instantly
What is Gallon to Milliliters Converter?
Gallon to Milliliters Converter is a free online tool that instantly converts volume measurements from gallons (gal) to milliliters (mL). Supports US gallons, UK gallons, and Imperial gallons. Perfect for cooking, chemistry, fuel calculations, and international recipe conversions.
How to Use Gallon to Milliliters Converter
- Enter Value: Type the number of gallons you want to convert
- Select Type: Choose US Gallon, UK Gallon, or Imperial Gallon
- Instant Result: Milliliters value appears automatically
Key Features
- 100% Free - Unlimited conversions with no charges
- Instant Results - Real-time conversion as you type
- Multiple Gallons - US, UK, and Imperial gallon support
- High Precision - Accurate to 2 decimal places
- Bidirectional - Convert both gallons to mL and mL to gallons
- Mobile Friendly - Works on all devices
Conversion Formulas
- US Gallon: 1 gal = 3,785.41 mL
- UK Gallon: 1 gal = 4,546.09 mL
- Imperial Gallon: 1 gal = 4,546.09 mL
Common Use Cases
- Cooking & Baking: Convert US/UK recipes to metric measurements
- Fuel Calculations: Calculate gas/petrol quantities in milliliters
- Chemistry Labs: Convert gallon measurements for experiments
- Agriculture: Calculate fertilizer and pesticide volumes
- Automotive: Oil, coolant, and fluid capacity conversions
- Water Tank Sizing: Calculate water storage in milliliters
Quick Reference Table
| Gallons | Milliliters (US) | Milliliters (UK) |
|---|---|---|
| 0.5 gal | 1,892.71 mL | 2,273.05 mL |
| 1 gal | 3,785.41 mL | 4,546.09 mL |
| 2 gal | 7,570.82 mL | 9,092.18 mL |
| 5 gal | 18,927.06 mL | 22,730.45 mL |
| 10 gal | 37,854.12 mL | 45,460.90 mL |
Frequently Asked Questions
How many milliliters in 1 gallon?
1 US gallon equals 3,785.41 milliliters, while 1 UK/Imperial gallon equals 4,546.09 milliliters. The difference is because US and UK gallons measure different volumes.
What's the difference between US and UK gallons?
US gallon is smaller (3,785.41 mL) and used in the United States. UK/Imperial gallon is larger (4,546.09 mL) and used in the United Kingdom and some Commonwealth countries. Always check which gallon type your recipe or measurement uses.
Is this converter accurate?
Yes! Our converter uses official conversion factors and provides results accurate to 2 decimal places, which is sufficient for cooking, chemistry, and most practical applications.
Can I convert milliliters back to gallons?
Yes! The converter works both ways. Simply enter the milliliter value and select which gallon type you want to convert to (US, UK, or Imperial).
Which gallon should I use for cooking?
Check the recipe's origin. American recipes use US gallons, British recipes use UK/Imperial gallons. When in doubt, US recipes are more common online. Most modern recipes also specify "US" or "UK" to avoid confusion.
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