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Unit Conversion • Cooking • Science • Engineering
Volume ConverterConvert Liters • Gallons • Milliliters • Cups • Fluid Ounces • Quarts • Pints
Liters to Gallons
Cooking Measurements
Scientific Units
Industrial Volumes
Common Volume Conversions:
Real-time conversion
Quick Volume Reference:
• 1 US gallon = about 3.8 liters (think: a milk jug)
• 1 liter = about 4.2 cups (think: a large soda bottle)
• 1 cup = about 240 mL (think: a coffee mug)
• 1 fluid ounce = about 30 mL (think: a shot glass)
Everyday Volume Comparisons
You Probably Have These:
Soda can: 12 fl oz = 355 mL (exactly, not rounded)
Water bottle: 16.9 fl oz = 500 mL (common size)
Milk jug: 1 gallon = 3.78 L (US standard)
Wine bottle: 750 mL = 25.4 fl oz (standard)
In Your Kitchen:
Teaspoon: 5 mL (actually 4.93, but everyone rounds)
Tablespoon: 15 mL (3 teaspoons, easy math)
Cup: 240 mL (in practice, though 236.6 is exact)
Stick of butter: ½ cup = 113.4 grams weight
Mental Shortcuts That Work
Gallons to Liters:Multiply by 4 (close enough)
Cups to Milliliters:Multiply by 240 (easy math)
Fluid Ounces to mL:Multiply by 30 (good estimate)
Quarts to Liters:Almost the same (0.95 L)
Volume Conversion Systems
Different cultures measure volume in ways that made sense for their daily lives. Understanding why these systems exist helps you convert between them more intuitively.
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Metric System (International):
Liter (L): Base unit for liquid volume
Milliliter (mL): 1/1000 liter, for precise measurements
Cubic Meter (m³): Used for large volumes like pools
US Customary Units:
Gallon (gal): Used for fuel, milk, large containers
Quart (qt): 1/4 gallon, common for beverages
Pint (pt): 1/8 gallon, used for beer, ice cream
Cooking Measurements:
Cup (c): Standard cooking measurement, 236.6 mL
Fluid Ounce (fl oz): Used in recipes, 29.57 mL
Tablespoon (tbsp): 1/16 cup, 14.79 mL
Specialized Units:
Cubic Foot (ft³): Used in construction, shipping
Barrel (bbl): 42 US gallons, oil industry
Acre-foot: Water volume measurement