Cacao bean
A cacao bean is the dried seed of the Theobroma cacao tree, used to produce cocoa and chocolate.
Also known as: cocoa bean, Theobroma cacao seed
How big is it?
2.4 cm · defined dry-bean length
Also 0.9449 in
Defined dry-bean length · defined specimen
Typical recorded range: 1.8 cm to 3 cm.
A little perspective
Cacao bean vs Human eyeball: length comparison
The dry-bean length of a cacao bean is approximately equal to the globe diameter of the human eyeball.
A cacao bean is the dried seed of the Theobroma cacao tree, used to produce cocoa and chocolate.
The human eyeball is the globe-shaped organ that receives light and begins the process of vision.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions.
Measurements, assumptions & sources +
Cacao bean
Defined dry-bean length: 2.4 cm; defined specimen; range 1.8 cm–3 cm.
A defined dry cacao bean 24 mm long and 1.2 g in mass. Variety, fermentation, drying and grading change both values.
Defined examples — our methodology
The marked defined dry-bean length is calibrated. Unmeasured illustration details are representative.
Human eyeball
Representative globe diameter: 2.4 cm; representative; range 2.3 cm–2.5 cm.
A representative adult human eye globe about 24 mm across. The corneal bulge and optic nerve are contextual and excluded from the calibrated globe diameter.
Encyclopaedia Britannica — Human eye
The marked representative globe diameter is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
Change your perspective
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Why this measurement?
Why we use 2.4 cm
We compare the dry-bean length of a cacao bean. This is an illustrative comparison value, not a claim that every example is the same. The recorded range is 1.8 cm to 3 cm.
A defined dry cacao bean 24 mm long and 1.2 g in mass. Variety, fermentation, drying and grading change both values.
The marked horizontal span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 2.4 cm | 1.8 cm to 3 cm | defined specimen | |
| 1.2 g | 800 mg to 1.6 g | defined specimen |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueEveryday objects£1 coin2.343 cmSpecified maximum diameterA £1 coin is a twelve-sided British coin used as standard currency in the United Kingdom.
Around the same scaleEveryday objectsUK 10p coin2.45 cmSpecified diameterA UK 10p coin is the ten-pence denomination of the decimal pound sterling circulation coinage.
Nearest higher valueEveryday objectsUS quarter2.426 cmDiameterA US quarter is a coin worth twenty-five cents, commonly used in United States currency.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
There’s always another scale
Follow your curiosity.
Everyday thingsCoffee bean120 mgA coffee bean is the roasted seed of the Coffea plant, used to make coffee after grinding.
Everyday thingsChickpea9 mmA chickpea is an edible seed from the Cicer arietinum plant, commonly used in cooking and also called a garbanzo bean.
PeopleHuman eyeball2.4 cmThe human eyeball is the globe-shaped organ that receives light and begins the process of vision.Everyday thingsUS quarter2.426 cmA US quarter is a coin worth twenty-five cents, commonly used in United States currency.
Living thingsSea angel2 cmA sea angel is a small, transparent swimming sea slug with wing-like appendages, found in cold ocean waters.Everyday thingsUK 10p coin2.45 cmA UK 10p coin is the ten-pence denomination of the decimal pound sterling circulation coinage.
SportSquash ball4 cmA squash ball is a small, hollow rubber ball used in the sport of squash.Everyday things£1 coin2.343 cmA £1 coin is a twelve-sided British coin used as standard currency in the United Kingdom.