Volume Converter

Convert liters to gallons, ml to cups, fluid ounces to ml, and dozens more liquid volume units instantly with this free volume converter. Every liquid conversion uses exact internationally standardized values. Whether adjusting a recipe, comparing container sizes, or checking fuel capacity, the results use exact standardized values. The fluid volume formulas and tables below cover the most common unit pairs searched globally.

Liters to Gallons Conversion

One liter equals 0.264172 US gallons. To convert liters to gallons, multiply the liter value by 0.264172. Note that UK imperial gallons are larger: 1 liter equals 0.21997 UK gallons. The difference between US and UK gallons is about 20 percent, which matters when comparing fuel economy figures from different countries.

Formula: US Gallons = Liters x 0.264172

Example: 5 liters = 5 x 0.264172 = 1.321 US gallons

Gallons to Liters Conversion

One US gallon equals exactly 3.78541 liters. This conversion is frequently needed for fuel tank comparisons, pool volume calculations, and water storage. To convert gallons to liters, multiply the gallon value by 3.78541. For UK gallons, multiply by 4.54609.

Formula: Liters = US Gallons x 3.78541

Example: 10 US gallons = 10 x 3.78541 = 37.854 liters

Tablespoons to Cups: Cooking Measurement Reference

One US cup equals exactly 16 tablespoons. This is one of the most used cooking conversions. To convert tablespoons to cups, divide the tablespoon count by 16. To convert cups to tablespoons, multiply by 16. One tablespoon also equals 3 teaspoons, so 1 cup equals 48 teaspoons.

Formula: Cups = Tablespoons / 16

Example: 8 tablespoons = 8 / 16 = 0.5 cups (half a cup)

ML to Cups Conversion

One US cup equals 236.588 milliliters. To convert ml to cups, divide the ml value by 236.588. Many international recipes use 250 ml as a rounded cup equivalent, which results in a 5.6 percent difference from the US standard. For baking, this difference can affect results and the precise value of 236.588 ml should be used.

Formula: Cups = ML / 236.588

Example: 500 ml = 500 / 236.588 = 2.113 cups

Fluid Ounces to ML Conversion

One US fluid ounce equals exactly 29.5735 milliliters. One UK fluid ounce equals 28.4131 ml. This difference matters when converting recipes across countries. A US recipe calling for 8 fl oz yields 236.6 ml, while 8 UK fl oz equals 227.3 ml. Always confirm whether fluid ounce measurements follow US or UK standards before converting.

Formula: ML = US Fluid Ounces x 29.5735

Example: 8 fl oz (1 US cup) = 8 x 29.5735 = 236.6 ml

Cups to Liters Conversion

One US cup equals 0.236588 liters. To convert cups to liters, multiply the cup count by 0.236588. This conversion is useful when scaling large-batch recipes, comparing beverage servings with metric bottle sizes, or filling containers measured in liters. Four US cups equal approximately 0.946 liters, just under 1 full liter.

Formula: Liters = Cups x 0.236588

Example: 4 cups = 4 x 0.236588 = 0.946 liters

Pints to Liters Conversion

One US pint equals 0.473176 liters (473.2 ml). One UK imperial pint equals 0.568261 liters (568.3 ml). Pints to liters conversions are commonly needed for beer volumes, dairy products, and beverage packaging. A standard US pint bottle holds 16 fluid ounces, while a UK pint holds approximately 19.2 fluid ounces.

Formula: Liters = US Pints x 0.473176

Example: 2 US pints = 2 x 0.473176 = 0.946 liters

1 Cup to ML

1 US cup equals exactly 236.588 milliliters (ml). For practical cooking and baking, 240 ml is commonly used as a rounded approximation. A standard liquid measuring cup at the 1-cup line holds 236.6 ml. One cup also equals 16 tablespoons, 8 US fluid ounces, or half a US pint. The precise value for scientific or nutritional purposes is 236.588 ml.

250ML Cups

250 ml equals approximately 1.057 US cups, just slightly more than 1 full cup (236.6 ml). Many countries outside the United States define a standard cup as 250 ml rather than 236.6 ml. For most cooking, treating 250 ml as 1 US cup is acceptable. Precise baking should use the exact value: 250 ml equals 1.057 US cups.

100 ML Cup

100 ml equals approximately 0.423 US cups, just under half a cup. It also equals 6.76 tablespoons or 3.38 US fluid ounces. A 100 ml serving size is a standard reference volume on nutrition labels for beverages including juice, milk, yogurt drinks, and plant-based milks. This volume is widely used in food labeling across Europe, Asia, and Oceania as a per-serving benchmark.

400ML Cup

400 ml equals approximately 1.691 US cups, or 1 cup plus about 11 tablespoons. It is close to 1 and two-thirds cups. In cooking, 400 ml is the standard fill volume for canned coconut milk tins and many canned tomato products. To convert 400 ml to cups precisely: 400 / 236.588 = 1.691 cups.

150ML Cup

150 ml equals approximately 0.634 US cups, just over half a cup (0.5 cup = 118.3 ml). It also equals 10.14 tablespoons or 5.07 US fluid ounces. A 150 ml glass is a recognized standard serving size for wine in hospitality guidelines. It is commonly used for small beverage portions in cafes, airlines, and restaurant settings worldwide.

US vs UK Volume Measurements

The United States uses the US customary system while the United Kingdom and many Commonwealth countries use the imperial system. Although many unit names are identical, the actual volumes differ substantially:

A UK recipe calling for 1 pint of stock uses 568 ml. The same instruction in a US cookbook means 473 ml. According to the NIST Weights and Measures division, the United States adopted its own customary system after independence. This diverged from the British imperial standard, which is why both systems share unit names but use different volumes.

Metric vs Imperial Volume Units

The metric volume units used globally are liters (L) and milliliters (ml), defined by the International System of Units (SI). Imperial and US customary systems use fluid ounces, cups, pints, quarts, and gallons as imperial volume units. The metric system is the global standard for science, medicine, and trade. Imperial units remain common in the United States and for everyday cooking measurements worldwide.

Volume Conversion Chart: All Common Units

This liquid volume conversion reference covers all standard units in a single chart for quick reference:

Real-World Volume Examples

Connecting volume conversions to familiar containers makes them easier to apply:

• Standard 500 ml water bottle: 2.11 US cups, 16.9 fl oz, 0.132 US gallons
• 2-liter soda bottle: 8.45 cups, 67.6 fl oz, 0.528 US gallons
• 1-gallon water jug (US): 3.785 liters, 16 cups, 128 fl oz
• 400 ml coconut milk can: 1.69 cups, 13.5 fl oz, 0.106 gallons
• Espresso double shot (60 ml): 0.25 cups, 2.03 fl oz
• Standard wine pour (150 ml): 0.634 cups, 5.07 fl oz
• US pint of beer (473 ml): 2 cups, 16 fl oz
• UK pint of beer (568 ml): 2.40 cups, 19.2 fl oz
• Average bathtub (300 L): 79.3 US gallons, 1,268 cups
• Car fuel tank (60 L typical): 15.85 US gallons

Limitations of This Volume Converter

This volume converter handles liquid volume and dry volume for standard kitchen and commercial measurements. Keep these points in mind:

• Dry vs liquid cups: A cup of flour and a cup of water occupy the same volume (236.6 ml) but have very different weights. This tool converts fluid volume only and does not account for ingredient density.
• US vs UK defaults: Results use US customary units unless otherwise stated. UK imperial gallons, pints, and cups are larger than their US equivalents and are shown separately in the comparison tables above.
• Non-standard cups: Australia, Canada, and some other countries use a 250 ml cup rather than the US 236.6 ml standard. Results may differ by up to 5.6% from locally expected values when a 250 ml cup is assumed.
• Rounding: All values are rounded to three decimal places for readability. Scientific or pharmaceutical applications requiring more precision should use the full conversion factors published by standards bodies.
• Non-liquid volumes: This converter does not handle geometric volumes such as cylinders, spheres, or tanks. For those calculations, a dedicated geometry calculator is needed.

All Volume Converters

DigiCalc covers every major volume conversion with dedicated calculators. Browse by category:

Cooking and Kitchen Measurements

• Tablespoons to Cups
• Cups to ML
• ML to Cups
• Cups to Liters
• Cups to Gallons
• Grams to Cups
• Milliliter to Fluid Ounce

Gallons and Liters

• Gallons to Liters
• Liters to UK Gallons
• ML to Gallon
• Quart to Gallon
• Liters to Quarts

Pints, Quarts, and Ounces

• Pints to Liters
• Pints to Quarts
• Liters to Ounces
• Ounce to Quart

Metric Volume Conversions

• ML to Liters
• ML to CC
• CC to Milliliter
• Cubic Centimeter to Liter
• Kiloliter to Liter
• Microliter to Milliliter

Cubic Volume Conversions

• Cubic Feet to Gallons
• Cubic Inches to Gallons
• Cubic Inches to Liters
• Liters to Cubic Feet
• Liters to Cubic Meters

For weight-based conversions, DigiCalc's weight converter covers kilograms, pounds, grams, and ounces. For length and distance units, the length converter handles metric and imperial measurements.