export const lengthUnits = {
    m: 1,
    km: 1000,
    cm: 0.01,
    mm: 0.001,
    mile: 1609.344,
    yard: 0.9144,
    foot: 0.3048,
    inch: 0.0254,
    nm: 1852, // nautical mile
    μm: 0.000001, // micrometer
    pm: 1e-12 // picometer
  };