Containers and capacity

Milk churn

A milk churn is a traditional metal container used for transporting and storing milk from farms to dairies.

Also known as: milk can, dairy churn

How big is it?

40 L in capacity

Also 10.57 US gal

Defined nominal capacity · defined specimen
Typical recorded range: 30 L to 50 L.

Scale illustration of Milk churn, calibrated to its defined nominal capacity measurement.
The marked defined nominal capacity represents 40 L.

A little perspective

About the same scale as 40 litre suitcase.

40 litre suitcase: A suitcase is a portable case for carrying clothes and belongings during travel.

True volume
01
Milk churn40 LDefined nominal capacity
02
These are equal-volume cubes. Edge lengths grow with the cube root of capacity; the cubes do not depict container exteriors.
Measurements, assumptions & sources +

Milk churn

A defined traditional 40 litre milk churn, 70 cm tall and 8 kg empty. Churn standards and materials vary; exterior height does not determine nominal capacity.

Defined examples — our methodology

The marked defined nominal capacity is calibrated. Unmeasured illustration details are representative.

40 litre suitcase

Defined 40 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.

Change your perspective

Put it next to…

Choose a suggestion to redraw the comparison, or open its page to learn what it is.

About this thing
About this thing
About this thing
About this thing
About this thing
About this thing

The full collection

Choose something to compare.

Loading compatible things…

Why this measurement?

Why we use 40 L

For comparison, this page uses defined nominal capacity. This is labelled defined specimen: an explicit comparison model rather than a claim that every example has the same value. The recorded range is 30 L to 50 L.

A defined traditional 40 litre milk churn, 70 cm tall and 8 kg empty. Churn standards and materials vary; exterior height does not determine nominal capacity.

The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →

Explore containers and capacity →

Recorded properties

Milk churn dimensions and measurements

PropertySelected valueRecorded rangeBasis
40 L30 L to 50 Ldefined specimen
70 cm60 cm to 80 cmdefined specimen
8 kg5 kg to 12 kgdefined specimen

Around this scale

Go smaller. Go bigger.

These links use compatible volume records, ordered around the selected value.

Sources and method

Want to check the number?

The source records and measurement method remain available for inspection.

Read the measurement and artwork methodology →

There’s always another scale

Follow your curiosity.

Explore things ↗

Share a little perspective.