What Is This Tool?
This unit converter tool enables you to translate measurements from the Bohr radius, an atomic-scale length unit used primarily in quantum chemistry and physics, into millimeters, which are commonly used in engineering and manufacturing for precise size specifications.
How to Use This Tool?
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Enter the numerical value in Bohr radius units that you wish to convert.
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Select 'Bohr radius [b, a.u.]' as the input unit and 'Millimeter [mm]' as the output unit.
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Click the convert button to obtain the equivalent measurement in millimeters.
Key Features
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Converts from Bohr radius [b, a.u.], the atomic unit of length, to millimeter [mm], a standard SI derived unit.
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Supports atomic-scale to engineering-scale length conversions for various scientific and industrial applications.
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Browser-based and easy to use without requiring additional software.
Examples
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10 Bohr radius = 10 × 5.2917724900001e-8 mm = 5.29177249e-7 mm
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100 Bohr radius = 100 × 5.2917724900001e-8 mm = 5.29177249e-6 mm
Common Use Cases
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Quantum chemistry and atomic-structure calculations requiring conversion of atomic lengths to metric units.
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Translating interatomic distances in computational physics and density functional theory simulations.
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Converting atomic scale distances for clear communication in engineering, manufacturing, and CAD design.
Tips & Best Practices
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Ensure precise input values as Bohr radius measurements convert into very small millimeter values.
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Use conversions to bridge fundamental atomic-scale concepts with practical engineering dimensions.
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Verify unit selections carefully when working across scientific and industrial contexts.
Limitations
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The Bohr radius is several orders of magnitude smaller than a millimeter, resulting in very small decimal outputs.
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Direct use of millimeters at atomic scales is uncommon; conversions mainly aid data interpretation and interdisciplinary communication.
Frequently Asked Questions
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What is a Bohr radius?
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The Bohr radius is the atomic unit of length representing the most probable distance between an electron and the nucleus in a hydrogen atom's ground state.
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Why convert Bohr radius to millimeters?
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Conversion helps express atomic-scale distances in standard metric units for engineering, manufacturing, and broader scientific communication.
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Can I measure atomic distances directly in millimeters?
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Atomic distances are much smaller than millimeters, so direct measurement in millimeters is impractical; conversions are used for reference and interpretation.
Key Terminology
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Bohr radius [b, a.u.]
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An atomic unit of length equal to the typical distance between the nucleus and electron in hydrogen's ground state.
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Millimeter [mm]
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An SI derived unit of length equal to one thousandth of a meter, used for measuring small precise distances.
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Atomic units
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A system of units used in quantum chemistry and physics to simplify the description of atomic-scale phenomena.