Angstroms to Nanometers (Å to nm) Converter

A simple, bidirectional converter for angstroms and nanometers. Below, find an advanced wavelength converter for scientific applications (Å, nm, µm, and eV).

Simple Å ↔ nm Conversion

Advanced Wavelength & Energy Converter

For scientific use. Enter a value in any field to convert between angstroms, nanometers, micrometers, and electronvolts (eV). The tool will also identify the corresponding part of the electromagnetic spectrum.

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How to Convert Angstroms to Nanometers

The conversion between angstroms (Å) and nanometers (nm) is one of the simplest in physics, as they are directly related by a factor of 10.

The Conversion Formula

The relationship is fixed and exact:

1 Nanometer (nm) = 10 Angstroms (Å)

Therefore, to convert from angstroms to nanometers, you **divide the angstrom value by 10**.

  • Formula: nm = Å / 10
  • Example: 5500 Å / 10 = 550 nm

To convert from nanometers to angstroms, you **multiply the nanometer value by 10**.

  • Formula: Å = nm × 10
  • Example: 400 nm × 10 = 4000 Å

What are Angstroms and Nanometers Used For?

Both are extremely small units of length, which makes them perfect for science:

  • Angstroms (Å): 1 Å = 10-10 meters. Angstroms are traditionally used by chemists and physicists to measure things at the **atomic scale**, such as the size of an atom or the length of a chemical bond. Wavelengths of X-rays are also often expressed in angstroms.
  • Nanometers (nm): 1 nm = 10-9 meters. Nanometers are the standard unit for measuring the **wavelength of light** in the visible spectrum (which ranges from about 400 nm to 700 nm). They are also heavily used in nanotechnology and microscopy.

Frequently Asked Questions (FAQ)

How many Angstroms are in 1 nm?

There are exactly **10 Angstroms (Å)** in 1 nanometer (nm).

What is 5500 Angstroms in nanometers?

To convert 5500 Å to nm, you divide by 10. The result is 550 nm. This wavelength corresponds to the green portion of the visible light spectrum.

What is the formula for converting nm to eV?

The relationship between wavelength (in nm) and energy (in electronvolts, or eV) is an inverse one, commonly approximated by the formula: eV ≈ 1240 / nm. Our advanced calculator uses this formula to convert between energy and wavelength.