Convert between 93+ different units of length and distance. From Planck length to light-years, metric to imperial, and everything in between - including historical, astronomical, and scientific units.
This converter automatically uses scientific notation for extremely large or small values. For example, 1 light year = 9.461×10¹⁵ meters, and 1 Planck length = 1.616×10⁻³⁵ meters.
The most comprehensive length converter with 93+ units from quantum to cosmic scales!