Volume Converter
Convert between different units of volume including liters, gallons, cups, milliliters, and more for cooking, chemistry, and everyday measurements.
Volume Conversion Calculator
Common Volume Conversions
Cooking & Baking Reference
Cooking Basics
- • 1 cup = 16 tablespoons = 48 teaspoons
- • 1 tablespoon = 3 teaspoons
- • 1 cup = 8 fluid ounces
- • 1 pint = 2 cups = 16 fluid ounces
Baking Conversions
- • 1 cup flour ≈ 120-125g
- • 1 cup sugar ≈ 200g
- • 1 cup butter ≈ 227g
- • 1 cup milk ≈ 240ml
International
- • 1 US cup = 236.588 ml
- • 1 UK cup = 284.131 ml
- • 1 metric cup = 250 ml
- • 1 Japanese cup = 200 ml
Volume Units Reference
Metric System
- 1 m³ = 1,000 liters
- 1 liter = 1,000 ml
- 1 liter = 1 dm³
- 1 ml = 1 cm³
US Customary
- 1 gal = 4 quarts
- 1 quart = 2 pints
- 1 pint = 2 cups
- 1 cup = 8 fl oz
Key Conversions
- 1 US gal = 3.785 L
- 1 UK gal = 4.546 L
- 1 cup = 236.6 ml
- 1 fl oz = 29.57 ml
Worth Knowing
US Gallon vs Imperial Gallon
A US gallon is 3.785411784 litres and an imperial (UK) gallon is 4.54609 litres, making the imperial gallon about 20.1 percent larger.
Cup Sizes Explained
A US customary cup is 236.59 mL, a US legal cup is 240 mL, a metric cup is 250 mL and a historic imperial cup is 284 mL.
Fluid Ounce vs Ounce
A US fluid ounce is 29.5735 millilitres of volume, while an ounce is 28.3495 grams of mass; there is no fixed conversion between them.
Cups to Grams for Baking
One US cup holds about 125 g of plain flour, 200 g of granulated sugar, 227 g of butter and 340 g of honey.
Understanding Volume Conversions
Volume conversions span metric units (milliliters, liters, cubic meters) and US/imperial units (teaspoons, cups, pints, quarts, gallons). The most important caution is that US and imperial gallons are different: a US gallon is about 3.785 liters, while an imperial (UK) gallon is about 4.546 liters.
For cooking, remember that a US cup is 236.6 ml and metric recipes often use a 250 ml cup, so quantities are close but not identical. One liter equals 1,000 cubic centimeters, which makes liters convenient for relating volume to mass for water (1 liter of water ≈ 1 kilogram).
Frequently Asked Questions
How many liters are in a US gallon?
One US gallon equals approximately 3.78541 liters. An imperial (UK) gallon is larger at about 4.54609 liters.
How many milliliters are in a cup?
A US customary cup is about 236.6 ml, while a metric cup is 250 ml.
Is a US gallon the same as a UK gallon?
No. A US gallon is about 3.785 liters and a UK (imperial) gallon is about 4.546 liters, roughly 20% larger.
How many cubic centimeters are in a liter?
One liter equals exactly 1,000 cubic centimeters (cm³).