nm−1\text{nm}^{-1}

per nanometer

Wavenumberexact by definition

The reciprocal nanometre is 10⁹ m⁻¹. It is the unit of momentum transfer in small-angle scattering and of reciprocal lattice vectors when the direct lattice is described in nanometres, as it usually is for polymers, colloids and nanostructures.

1 nm−1\text{nm}^{-1} 1,000,000,000 m−1\text{m}^{-1}

One per nanometer in every wavenumber unit

1,000,000,000,000per kilometer (km⁻¹)
1,000,000,000per meter (m⁻¹)
304,800,000per foot (ft⁻¹)
25,400,000per inch (in⁻¹)
10,000,000per centimeter (kayser) (cm⁻¹)
1,000,000per millimeter (mm⁻¹)
1,000,000line pairs per millimeter (lp/mm)
1,000per micrometer (μm⁻¹)
1per nanometer (nm⁻¹)this unit
0.1per angstrom (Å⁻¹)