Question 1

What is volume vs capacity?

Accepted Answer

Volume is 3D space occupied. Capacity is how much a container can hold. Often used interchangeably for liquids.

Question 2

How do I measure container capacity?

Accepted Answer

Fill with water, measure water volume. Or calculate from internal dimensions. Account for irregular shapes.

Question 3

Are US and UK gallons the same?

Accepted Answer

No! US gallon = 3.785 liters. UK (Imperial) gallon = 4.546 liters. UK gallon is about 20% larger. Same applies to pints and fluid ounces.

Question 4

What's the most accurate way to measure volume?

Accepted Answer

For precision: measure by weight and convert using density. For liquids at eye level: read at the bottom of the meniscus curve.

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