🧪 Volume Converter
Convert liters, gallons, cups, fluid ounces, milliliters, tablespoons, teaspoons, and more.
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Common Volume Conversions
| Input | Unit | Result | Unit |
|---|---|---|---|
| 1 | Gallon (US) | 3.7854118 | Liter |
| 1 | Liter | 33.814023 | Fluid Ounce (US) |
| 1 | Cup (US) | 236.58824 | Milliliter |
| 1 | Tablespoon | 3 | Teaspoon |
| 2 | Pint (US) | 0.94635295 | Liter |
| 16 | Fluid Ounce (US) | 473.17647 | Milliliter |
Popular Conversions
About Volume Conversions
Volume measures the three-dimensional space that a substance occupies. In cooking and food preparation it is the most commonly used measurement type — recipes call for cups of flour, tablespoons of oil, and milliliters of extract. Understanding how these units relate to each other is a practical skill that comes up constantly in the kitchen.
The metric system uses liters (L) and milliliters (mL) as its primary volume units. The US customary system uses a hierarchical set of units: 1 gallon = 4 quarts = 8 pints = 16 cups = 128 fluid ounces. Each step in this chain divides by 2, which makes mental math manageable once you know the key relationships.
One important distinction: a fluid ounce is a unit of volume (approximately 29.57 mL), while a regular avoirdupois ounce is a unit of weight (approximately 28.35 grams). For water, these are numerically close because water has a density near 1 g/mL. For denser or lighter liquids — oil, honey, alcohol — the volume and weight in ounces will differ noticeably.
Frequently Asked Questions
How many cups are in a gallon?
There are exactly 16 US cups in one US gallon. The hierarchy is: 1 gallon = 4 quarts = 8 pints = 16 cups = 256 tablespoons = 768 teaspoons.
How many milliliters are in a cup?
One US cup equals approximately 236.588 milliliters. In cooking, 240 mL is often used as a rounded approximation, which is close enough for most recipes.
How many tablespoons are in a cup?
There are exactly 16 tablespoons in one US cup, or 48 teaspoons. Knowing this is useful when scaling recipes up or down — for example, 1/4 cup equals 4 tablespoons.
What is the difference between a fluid ounce and a regular ounce?
A fluid ounce (fl oz) measures volume — approximately 29.57 mL in the US. A regular (avoirdupois) ounce measures weight — approximately 28.35 grams. They are different types of measurement and cannot be directly compared except for specific substances like water.
How many liters are in a gallon?
One US gallon equals approximately 3.785 liters. The UK imperial gallon is different: it equals approximately 4.546 liters. When following international recipes, it is worth checking which gallon is meant.
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Reference Handbooks
Sources
Our Methodology
How we source and verify conversion factors.
Reference Library
Tables, charts, and authoritative reference data.
Reference Charts
Liters to Gallons Conversion Chart
Reference chart converting liters (L) to US gallons. Covers 0.5 L to 100 L — common for fuel, beverages, and container sizing.
Gallons to Liters Conversion Chart
Reference chart converting US gallons to liters. Covers 0.25 to 50 gallons — essential for fuel, cooking, and international measurement.
All Converters
All conversion results are provided for general informational purposes only. Our formulas use internationally recognized conversion factors; however, rounding may affect precision. Do not rely on these results for professional, medical, legal, or engineering decisions without independent verification. Read our full disclaimer.