Volume & Liquid Converters
8 tools in this collection — free, instant, and private in your browser.
Volume converters translate between the units used to measure liquids and other substances in cooking, science, medicine, and everyday life. Liters and milliliters are the global standard; cups, fluid ounces, pints, and gallons are common in the United States. The gap between these systems creates friction when you follow a foreign recipe, buy beverages abroad, or compare fuel economy figures, and these tools close that gap instantly.
The most practical converters for home cooks are Cups to Milliliters and Milliliters to Fluid Ounces, because American recipes use cups while most digital kitchen scales and measuring jugs sold outside the US show milliliters. Similarly, Fluid Ounces to Milliliters is essential for medicine dosing, where liquid medications are often labeled in milliliters but older instructions may reference fluid ounces.
For beverages and fuel, Gallons to Liters and Liters to Gallons handle the most common cross-border comparisons: US gas prices per gallon versus European prices per liter, or large water containers sized in gallons versus liter bottles. Pints to Liters covers beer and milk quantities, where pints remain the standard in the UK and Ireland.
Liters to Milliliters is a simple within-metric conversion that is useful when a recipe or formula specifies milliliters but the quantity you have is expressed in liters, or vice versa. The general Volume Converter handles all of these and additional units like quarts, tablespoons, and cubic centimeters in one place.
Choose a dedicated converter for speed and simplicity. Use the general Volume Converter when you need to work with tablespoons, teaspoons, quarts, or cubic units that the dedicated pages do not cover.
All volume & liquid converters
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| Tool | What it does |
|---|---|
| Cups to Milliliters | Convert cups to milliliters instantly. Free, fast, no signup. |
| Fluid Ounces to Milliliters | Convert fluid ounces to milliliters instantly. Free, fast, no signup. |
| Gallons to Liters | Convert gallons (us) to liters instantly. Free, fast, no signup. |
| Liters to Gallons | Convert liters to gallons (us) instantly. Free, fast, no signup. |
| Liters to Milliliters | Convert liters to milliliters instantly. Free, fast, no signup. |
| Milliliters to Fluid Ounces | Convert milliliters to fluid ounces instantly. Free, fast, no signup. |
| Pints to Liters | Convert pints (us) to liters instantly. Free, fast, no signup. |
| Volume Converter | Convert volume between millilitres, litres, cubic metres, teaspoons, tablespoons, fluid ounces, cups, pints, quarts, and gallons. |
Frequently asked questions
- How many milliliters are in a cup?
- One US cup equals 236.588 milliliters, usually rounded to 237 ml for practical purposes. Note that a US cup differs from an imperial cup (284 ml) and a metric cup used in Australia and Canada (250 ml). Most American recipes use the US cup, so when in doubt, use 237 ml.
- What is the difference between a fluid ounce and an ounce of weight?
- A fluid ounce measures volume, not weight. One US fluid ounce equals about 29.57 milliliters. An ounce of weight (avoirdupois) equals about 28.35 grams. For water these happen to be close to each other because water is nearly one gram per milliliter, but for denser liquids like honey or lighter ones like alcohol the values diverge noticeably.
- How do I convert liters to gallons for fuel comparisons?
- One US gallon equals approximately 3.785 liters. To convert liters to US gallons, divide by 3.785. For UK imperial gallons, divide by 4.546 instead. When comparing fuel prices across countries, make sure you are using the same gallon definition, since US and UK gallons differ by about 20 percent.