What is a length converter?

A length converter helps you convert between different units of length quickly and accurately.

How do I convert span (cloth) to Bohr radius?

Simply enter the value in the span (cloth) input field, and the converter will show you the equivalent value in Bohr radius instantly.

Is this length converter free to use?

Yes, this length converter is completely free and easy to use for all your conversion needs.

Can I switch between span (cloth) and Bohr radius easily?

Yes, there is a switch button provided to quickly swap the conversion direction between span (cloth) and Bohr radius.

How accurate are the conversion results?

The conversion results are calculated using precise formulas to ensure accuracy for most practical purposes.

Convert span (cloth) to Bohr radius Online

Convert span (cloth) to Bohr radius Online | Free Length Converter

Span (Cloth)

A span is an old unit of length based on the distance between the tip of the thumb and the tip of the little finger of a fully extended hand. Traditionally, it measures about 9 inches or 22.86 centimeters.

In the context of cloth and textiles, the span was used as a convenient, informal measure to estimate small lengths of fabric before standardized rulers became widespread. It was helpful for tailors and traders to quickly gauge lengths during measuring and cutting.

While the span is largely obsolete as a formal unit today, it reflects historical measurement practices tied closely to the human body, similar to the cubit or hand.

Summary:

1 span ≈ 9 inches (22.86 cm)
Based on the hand’s spread
Used historically in cloth measurement and tailoring
Now mostly of historical and cultural interest

Bohr Radius

The Bohr radius is a fundamental physical constant that represents the average distance between the nucleus and the electron in a hydrogen atom in its ground state, according to the Bohr model of the atom.

Its value is approximately 5.29177 × 10⁻¹¹ meters (about 0.529 angstroms).
Named after physicist Niels Bohr, who introduced the model in 1913.
It sets a natural length scale in atomic physics and quantum mechanics.
Used to describe atomic sizes and electron orbitals.

Key facts:

Bohr radius ≈ 5.29 × 10⁻¹¹ m
Represents the typical size of a hydrogen atom’s electron orbit
Fundamental to quantum physics and atomic structure

The Bohr radius is essential for understanding atomic dimensions and quantum behavior of electrons.

No conversions available for length.

From:		span (cloth)
To:		Bohr radius

Convert span (cloth) to Bohr radius Online | Free Length Converter

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