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Volume & capacity

Just how much is 5 US gallons?

Containers

5 US gal

Scale
5 US gallons

The quantity is exact as entered.

18.93 LVolume
20 litre jerrycan

A jerrycan is a sturdy container for storing and transporting liquids such as fuel or water.

20 LVolume
These are equal-volume cubes. Edge lengths grow with the cube root of capacity; the cubes do not depict container exteriors.

A little perspective

The capacity of a 20 litre jerrycan is about 1.06 times 5 US gallons.

Measurements, assumptions & sources +

5 US gallons

Volume: 18.93 L; definition.

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

NIST — SI conversion factors

20 litre jerrycan

Volume: 20 L; example.

Defined 20 litre capacity. Actual containers, servings and fills vary. Outer shape is not used to calculate capacity.

Defined examples — our methodology

The marked volume is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

Compare 5 US gallons with the volume of a 20 litre jerrycan. The notes below explain how each value was chosen.

5 US gallons

18.93 L

Volume · definition

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

20 litre jerrycan

20 L

Volume · example

Defined 20 litre capacity. Actual containers, servings and fills vary. Outer shape is not used to calculate capacity.

Comparing
Volume ↔ Volume
Relative size
The capacity of a 20 litre jerrycan is about 1.06 times 5 US gallons. The volume of a 20 litre jerrycan is approximately 5.67% greater than 5 US gallons.

How to read the visual

The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.

  • The volume of a 20 litre jerrycan: This is an illustrative comparison value, not a claim that every example is the same.

Volume measures three-dimensional space; a container’s capacity is not its outside dimensions.

18.927 Llitres
0.018927 m³cubic metres
4.1634 UK galUK gallons

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