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Volume & capacity

Just how much is 100 cubic feet?

Rooms & pools

100 ft³

Scale
100 cubic feet

The quantity is exact as entered.

2.832 m³Volume
2,500 litre tank

An oil tank stores heating oil or other liquid fuels for domestic or industrial use.

2.5 m³Volume
These are equal-volume cubes. Edge lengths grow with the cube root of capacity; the cubes do not depict container exteriors.

A little perspective

100 cubic feet is about 1.13 times the capacity of a 2,500 litre tank.

Measurements, assumptions & sources +

100 cubic feet

Volume: 2.832 m³; definition.

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

NIST — SI conversion factors

2,500 litre tank

Volume: 2.5 m³; example.

Defined 2,500 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 100 cubic feet with the volume of a 2,500 litre tank. The notes below explain how each value was chosen.

100 cubic feet

2.832 m³

Volume · definition

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

2,500 litre tank

2.5 m³

Volume · example

Defined 2,500 litre capacity. Actual containers, servings and fills vary. Outer shape is not used to calculate capacity.

Comparing
Volume ↔ Volume
Relative size
100 cubic feet is about 1.13 times the capacity of a 2,500 litre tank. 100 cubic feet is approximately 13.3% greater than the volume of a 2,500 litre tank.

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 2,500 litre tank: 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.

2,831.7 Llitres
2.8317 m³cubic metres
748.05 US galUS gallons
622.88 UK galUK gallons

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