Volume Converter Online
Free online volume converter. Convert between liters, gallons, cups, milliliters, fluid ounces, and more. Instant, accurate results for cooking and science.
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Tip: Click any result row to instantly copy its value to clipboard
💡 Definition
Volume Converter
- Volume measures the three-dimensional space occupied by a substance.
- The metric base unit is the liter (L), while the imperial system uses gallons, quarts, pints, and cups.
- This converter supports both US and Imperial gallon systems.
📖 How to use
Step by Step
- Enter a volume value and choose your source unit from the Convert From dropdown
- All equivalent volumes appear instantly in the results grid
- The source unit row is highlighted in purple for clarity
- Click any result row to copy that value to your clipboard
🎯 Use cases
When to use
- Converting recipe measurements between metric and US cups
- Fuel tank capacity calculations
- Scientific and laboratory liquid measurements
- Comparing beverage and container sizes globally
Frequently Asked Questions
How many liters are in a US gallon?▾
One US gallon equals approximately 3.78541 liters. One Imperial (UK) gallon equals approximately 4.54609 liters. Always check which gallon system is being referenced.
How many ml in a cup?▾
A US cup is approximately 236.588 mL. An Imperial cup is 284.131 mL, and a metric cup (used in Australia) is exactly 250 mL.
What is the difference between US and Imperial fluid ounces?▾
A US fluid ounce is approximately 29.5735 mL, while an Imperial fluid ounce is approximately 28.4131 mL. Despite both being called 'fluid ounces,' they differ slightly in volume.