How Volume Converter Works
The liter is the base unit for this converter. A US gallon is defined as exactly 3.78541 liters and a US cup as 0.236588 liters, so your input is multiplied by its own unit's factor to reach liters, then divided by each other unit's factor to fill out the rest of the table in one pass.
How to Use This Tool
- Enter the amount you want to convert into the value field.
- Choose the unit that amount is currently in — from milliliters up to gallons.
- The results box lists that volume converted into every other supported unit, updating live.
- Select Reset to clear the field and start over.
Example
Converting 5 US gallons: 5 × 3.78541 = 18.92705 liters, which is 18,927.05 milliliters and about 80 US cups (18.92705 ÷ 0.236588).
Helpful Tips
- This converter uses US customary measures (US cup, US gallon, etc.) — UK imperial measures use different definitions, so don't mix the two when following a recipe.
- For cooking, teaspoons and tablespoons are most useful for small quantities, while cups, pints and quarts suit larger recipe volumes.
Frequently Asked Questions
Are these US or UK/imperial volume units?
US customary units — a US gallon (3.78541 L) is smaller than a UK imperial gallon (about 4.546 L), and US cups, pints and quarts differ from their imperial counterparts too, so check which system a recipe or spec uses.
How many tablespoons are in a US cup?
A US cup is 0.236588 liters and a US tablespoon is 0.0147868 liters, so dividing gives 16 tablespoons per cup — the same ratio this converter uses internally.
Why is cubic meter included alongside cooking measures?
Cubic meters are useful for larger volumes such as water tanks, shipping containers or construction materials, where liters or gallons would produce unwieldy large numbers.
Can I convert a recipe measurement in fluid ounces?
Yes — select US fluid ounce as the unit and enter your amount; the tool converts it to liters, milliliters, cups and every other supported volume unit at once.
This tool runs entirely in your browser. Your input is not uploaded to any server.