WEBConvert between Length units by using our online calculator. Enter any amount you want to convert, and press the Convert button. Å Angstroms. [ Å → au ] Angstroms to Astronomical units. [ Å → cm ] Angstroms to Centimetres. [ Å → dm ] Angstroms to Decimetres. [ Å → ft ] Angstroms to Feet. [ Å → in ] Angstroms to Inches.