Volume Converter

1 cup = 240 ml · 1 gal = 3.785 L · 1 L = 1000 ml

Area & Volume

How to Use This Tool

Volume Conversion Reference

This converter handles both US customary volumes and metric volumes. Note that US fluid volumes differ from imperial (UK) fluid volumes — a US gallon is 3.785 L while an imperial gallon is 4.546 L.

Common Volume Relationships

  • 3 teaspoons = 1 tablespoon
  • 16 tablespoons = 1 cup
  • 2 cups = 1 pint
  • 2 pints = 1 quart
  • 4 quarts = 1 gallon
  • 1 US gallon = 3.78541 liters

Formula & Explanation

US volume conversions are based on the US customary system. The US gallon is defined as exactly 3.785411784 liters. (Note: US cups are sometimes listed as 236.6 ml in legal contexts, but the FDA cup is 240 ml — we use 240 ml.)

Related Tools

Frequently Asked Questions

What's the difference between a US gallon and an imperial gallon?

A US gallon is 3.785 liters (128 fluid ounces). An imperial (UK) gallon is 4.546 liters (160 fluid ounces). Always check which system a recipe or specification is using before converting.

How many tablespoons are in a cup?

There are 16 tablespoons in 1 US cup. (So 1 tablespoon = 1/16 cup = 0.0625 cup.)

How many teaspoons are in a tablespoon?

There are 3 teaspoons in 1 tablespoon. This is the standard US ratio used in cooking.