Salt crystal
A salt crystal is a small, naturally occurring or manufactured piece of sodium chloride used in food and industry.
How big is it?
300 µm · characteristic size
Characteristic size · representative
A little perspective
Salt crystal vs Grain of sand: length comparison
The diameter of a grain of sand is about 1.67 times the characteristic size of a salt crystal.
A salt crystal is a small, naturally occurring or manufactured piece of sodium chloride used in food and industry.
A grain of sand is a tiny fragment of rock or mineral, commonly found on beaches and in soil.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions.
Measurements, assumptions & sources +
Salt crystal
Characteristic size: 300 µm; representative.
A chosen 0.3 mm table-salt crystal. The irregular illustration is a scale specimen.
University of Utah — Cell size and scale
The marked characteristic size is calibrated. Unmeasured illustration details are representative.
Grain of sand
Diameter: 500 µm; example.
Separate illustrative measurements: 0.5 mm across; 1 mg mass. Mineral and shape vary.
Defined examples — our methodology
The marked diameter is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 300 µm
We compare the characteristic size of a salt crystal. This is a representative comparison value; individual specimens or conditions can vary.
A chosen 0.3 mm table-salt crystal. The irregular illustration is a scale specimen.
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 |
|---|---|---|---|
| 300 µm | Not recorded | representative | |
| 60 µg | Not recorded | 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 objectsSheet of paper100 µmThicknessA sheet of paper is a flat material made from cellulose pulp, used for writing, printing or packaging.
Around the same scaleMicroscopic objectsAmoeba cell300 µmDefined maximum projected spanAn amoeba cell is a single-celled organism that moves and engulfs food by extending temporary projections called pseudopodia.
Nearest higher valueMicroscopic objectsGrain of sand500 µmDiameterA grain of sand is a tiny fragment of rock or mineral, commonly found on beaches and in soil.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- University of Utah — Cell size and scaleApproximate biological size regimes. Atlas specimens and geometric assumptions are individually labelled.
- Defined examples — our methodology
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
Living thingsHoneybee1.5 cmA honeybee is a social insect that lives in a colony and gathers nectar and pollen from flowers.
Living thingsSmall ant5 mmAn ant is a social insect that lives in an organised colony, usually with workers, a queen and specialised roles.
Everyday thingsUS quarter2.426 cmA US quarter is a coin worth twenty-five cents, commonly used in United States currency.MicroscopicGrain of sand500 µmA grain of sand is a tiny fragment of rock or mineral, commonly found on beaches and in soil.Everyday thingsSheet of paper100 µmA sheet of paper is a flat material made from cellulose pulp, used for writing, printing or packaging.
Living thingsPoppy seed1 mmA poppy seed is an edible seed produced by plants in the poppy family and commonly used in breads and other foods.
PeopleHair70 µmA hair is a slender strand of protein that grows from the skin of humans and other mammals.MicroscopicAmoeba cell300 µmAn amoeba cell is a single-celled organism that moves and engulfs food by extending temporary projections called pseudopodia.