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Length & distance

Just how long is 3 millimetres?

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3 mm

Scale
3 millimetres

The quantity is exact as entered.

3 mmLength
0 - shared origin
Sesame seed

A sesame seed is an oil-rich edible seed produced by the sesame plant and used whole, ground or pressed for oil.

3 mmLength
0 - shared origin

Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork. A ruler represents the selected distance or a measurement not visible in this view.

A little perspective

3 millimetres is approximately equal to the length of a sesame seed.

Measurements, assumptions & sources +

3 millimetres

Length: 3 mm; definition.

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

NIST — SI conversion factors

Sesame seed

Length: 3 mm; example.

Example seed: 3 mm long, 3 mg.

Defined examples — our methodology

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

Measurement details

Why these numbers?

Compare 3 millimetres with the length of a sesame seed. The notes below explain how each value was chosen.

3 millimetres

3 mm

Length · definition

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

Sesame seed

3 mm

Length · example

Example seed: 3 mm long, 3 mg.

Comparing
Length ↔ Length
Relative size
3 millimetres is approximately equal to the length of a sesame seed.

How to read the visual

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

  • The length of a sesame seed: This is an illustrative comparison value, not a claim that every example is the same.

This comparison follows the selected length only; other dimensions may differ.

0.003 mmetres
0.0098425 ftfeet
1.8641 × 10⁻⁶ mimiles
2.0054 × 10⁻¹⁴ AUastronomical units

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