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Volume Converter - Convert Between Different Volume Units

Free online volume unit converter. Convert between cubic meters, liters, gallons, cubic feet, and other volume units instantly.

Convert volume measurements between different units with this simple and accurate volume converter. Instantly convert between cubic meters, liters, gallons, cubic feet, and more.

Common Volume Conversions

Liters to Gallons (US)

1 L = 0.264 gal

Cubic Meters to Cubic Feet

1 m³ = 35.315 ft³

Milliliters to Fluid Ounces (US)

1 mL = 0.034 fl oz

Gallons (US) to Liters

1 gal = 3.785 L

Cubic Feet to Cubic Meters

1 ft³ = 0.028 m³

Fluid Ounces (US) to Milliliters

1 fl oz = 29.574 mL

How This Tool Works

Our Volume Converter tool makes it easy to convert volume measurements between different units:

  1. Enter the volume value you want to convert in the "Value" field
  2. Select the unit you're converting from in the "From" dropdown
  3. Select the unit you're converting to in the "To" dropdown
  4. View the converted result instantly
  5. Use the "Swap Units" button to quickly reverse the conversion
  6. Copy the result to your clipboard by clicking the copy button

The converter supports a wide range of volume units including:

  • Metric units: cubic meters, cubic centimeters, liters, milliliters
  • US customary units: gallons, quarts, pints, cups, fluid ounces, tablespoons, teaspoons
  • UK imperial units: gallons, quarts, pints, fluid ounces
  • Other units: cubic feet, cubic inches, cubic yards

All conversions are performed with high precision using standard conversion factors.

Frequently Asked Questions

What's the difference between US and UK volume measurements?

US and UK (Imperial) volume measurements use the same names but represent different volumes:

  • 1 US gallon = 3.785 liters
  • 1 UK gallon = 4.546 liters
  • 1 US fluid ounce = 29.574 milliliters
  • 1 UK fluid ounce = 28.413 milliliters

This difference is important when following recipes or measuring liquids from different countries.

How accurate is this volume converter?

This volume converter uses standard conversion factors and performs calculations with high precision. The results are accurate to multiple decimal places, with the display precision adjusted based on the magnitude of the result. For scientific or industrial applications where extreme precision is required, you may want to verify the conversion factors used.

When would I need to convert between volume units?

Volume unit conversions are useful in many scenarios:

  • Cooking and baking - converting between metric and imperial measurements in recipes
  • Construction - calculating concrete, gravel, or other building material volumes
  • Engineering - designing containers, tanks, or systems that hold liquids
  • Chemistry and laboratory work - converting between scientific and practical volume units
  • Fuel consumption - converting between gallons and liters for vehicle fuel efficiency
  • Import/export - working with products from countries using different measuring systems

What's the relationship between cubic measurements and liters?

The liter is defined as the volume of a cube with 10 cm sides:

  • 1 liter = 1,000 cubic centimeters (cm³)
  • 1 liter = 0.001 cubic meters (m³)
  • 1 cubic meter = 1,000 liters

This convenient relationship between liters and cubic measurements in the metric system makes conversions straightforward. In contrast, the relationship between cubic inches and fluid ounces in imperial/US customary systems is less intuitive.

Tips and Best Practices

  • When cooking with international recipes, pay attention to whether measurements are in US or UK units
  • For medication, always use the measuring device provided and don't convert between units
  • 1 cup (US) is approximately 236.59 mL, not 250 mL as sometimes approximated
  • When calculating fuel economy, remember that 1 US gallon = 3.785 liters
  • For shipping containers, volumes are typically specified in cubic meters (m³) or cubic feet (ft³)
  • In chemistry, 1 liter of water at 4°C weighs almost exactly 1 kilogram
  • When calculating concrete needs, add 10% extra to account for spillage and settling
  • For cooking measurements: 3 teaspoons = 1 tablespoon, 16 tablespoons = 1 cup (in the US system)