per inch
Wavenumberexact by definition
The reciprocal inch is exactly 1/0.0254 m⁻¹, about 39.37 m⁻¹. It appears in American practice as a spatial frequency, most visibly as threads per inch on fasteners and as lines or dots per inch in printing and scanning.
Watch out: Printing resolutions in dpi and screen rulings in lpi are the same dimension but not the same measurement: dpi counts addressable dots, lpi counts halftone screen lines, and a good halftone needs several dots per line in each direction.
| 1 | 39.370079 |
One per inch in every wavenumber unit
| 39,370.1 | per kilometer (km⁻¹) | |
| 39.3701 | per meter (m⁻¹) | |
| 12 | per foot (ft⁻¹) | |
| 1 | per inch (in⁻¹)this unit | |
| 0.393701 | per centimeter (kayser) (cm⁻¹) | |
| 0.0393701 | per millimeter (mm⁻¹) | |
| 0.0393701 | line pairs per millimeter (lp/mm) | |
| 0.0000393701 | per micrometer (μm⁻¹) | |
| 3.93701e-08 | per nanometer (nm⁻¹) | |
| 3.93701e-09 | per angstrom (Å⁻¹) |
Solvers that use wavenumber