X-unit Meter
| X m |
X-unit Kilometer
| X km |
X-unit Decimeter
| X dm |
X-unit Centimeters
| X cm |
X-unit Millimeter
| X mm |
X-unit Micrometer
| X µm |
X-unit Nanometer
| X nm |
X-unit Mile
| X mi, mi(Int) |
X-unit Yard
| X yd |
X-unit Foot
| X ft |
X-unit Inch
| X in |
X-unit Light year
| X ly |
X-unit Exameter
| X Em |
X-unit Petameter
| X Pm |
X-unit Terameter
| X Tm |
X-unit Gigameter
| X Gm |
X-unit Megameter
| X Mm |
X-unit Hectometer
| X hm |
X-unit Dekameter
| X dam |
X-unit Micron
| X µ |
X-unit Picometer
| X pm |
X-unit Femtometer
| X fm |
X-unit Attometer
| X am |
X-unit Megaparsec
| X Mpc |
X-unit Kiloparsec
| X kpc |
X-unit Parsec
| X pc |
X-unit Astronomical unit
| X AU, UA |
X-unit League
| X lea |
X-unit Nautical league (UK)
| — |
X-unit Nautical league (int.)
| — |
X-unit League (statute)
| X st.league |
X-unit Nautical mile (UK)
| X NM (UK) |
X-unit Nautical mile (international)
| — |
X-unit Mile (statute)
| X mi, mi (US) |
X-unit Mile (US survey)
| X mi |
X-unit Mile (Roman)
| — |
X-unit Kiloyard
| X kyd |
X-unit Furlong
| X fur |
X-unit Furlong (US survey)
| X fur |
X-unit Chain
| X ch |
X-unit Chain (US survey)
| X ch |
X-unit Rope
| — |
X-unit Rod
| X rd |
X-unit Rod (US survey)
| X rd |
X-unit Perch
| — |
X-unit Pole
| — |
X-unit Fathom
| X fath |
X-unit Fathom (US survey)
| X fath |
X-unit Ell
| — |
X-unit Foot (US survey)
| X ft |
X-unit Link
| X li |
X-unit Link (US survey)
| X li |
X-unit Cubit (UK)
| — |
X-unit Hand
| — |
X-unit Span (cloth)
| — |
X-unit Finger (cloth)
| — |
X-unit Nail (cloth)
| — |
X-unit Inch (US survey)
| X in |
X-unit Barleycorn
| — |
X-unit Mil
| X mil, thou |
X-unit Microinch
| — |
X-unit Angstrom
| X A |
X-unit A.u. of length
| X a.u., b |
X-unit Fermi
| X F, f |
X-unit Arpent
| — |
X-unit Pica
| — |
X-unit Point
| — |
X-unit Twip
| — |
X-unit Aln
| — |
X-unit Famn
| — |
X-unit Caliber
| X cl |
X-unit Centiinch
| X cin |
X-unit Ken
| — |
X-unit Russian archin
| — |
X-unit Roman actus
| — |
X-unit Vara de tarea
| — |
X-unit Vara conuquera
| — |
X-unit Vara castellana
| — |
X-unit Cubit (Greek)
| — |
X-unit Long reed
| — |
X-unit Reed
| — |
X-unit Long cubit
| — |
X-unit Handbreadth
| — |
X-unit Fingerbreadth
| — |
X-unit Planck length
| — |
X-unit Electron radius (classical)
| — |
X-unit Bohr radius
| X b, a.u. |
X-unit Earth's equatorial radius
| — |
X-unit Earth's polar radius
| — |
X-unit Earth's distance from sun
| — |
X-unit Sun's radius
| — |