Volume Converter: Convert Between Capacity Units

Volume and capacity measurements vary widely between imperial, US customary, and metric systems. Our Volume Converter handles conversions between gallons, quarts, pints, cups, fluid ounces, milliliters, liters, cubic inches, cubic feet, and more. Whether you are cooking, mixing chemicals, filling an aquarium, or calculating fuel consumption, get accurate volume conversions.

Key conversions: 1 US gallon = 3.785 liters = 4 quarts = 8 pints = 16 cups = 128 fluid ounces. 1 liter = 1,000 milliliters = 33.814 fluid ounces. 1 cubic foot = 7.481 gallons = 28.317 liters. 1 cubic meter = 1,000 liters = 264.172 gallons. Note that US and UK imperial units differ: a UK gallon is 4.546 liters versus 3.785 liters for a US gallon.

Use the Volume Converter for cooking and baking (cups to milliliters for international recipes), fuel economy (gallons to liters), aquarium setup (gallons to liters for tank capacity), shipping (cubic feet to cubic meters for freight), and pool maintenance (gallons to cubic feet for chemical dosing). Also check our Weight Converter for mass conversions and our Cooking Converter for recipe-specific measurements.