@thi.ng/units/units/density.js

Extensible SI unit creation, conversions, quantities & calculations (incl. ~170 predefined units & constants)

import { inch } from "./length.js";
import { kg } from "./mass.js";
import { defUnit, div, reciprocal } from "../unit.js";
import { m3 } from "./volume.js";
const kg_m3 = defUnit("kg/m3", "kilogram per cubic meter", div(kg, m3));
const dpi = defUnit("dpi", "dots per inch", reciprocal(inch));
export {
  dpi,
  kg_m3
};