| a.u. of length [a.u., b]: | |
| aln: | |
| angstrom [A]: | |
| arpent: | |
| astronomical unit [AU, UA]: | |
| attometer [am]: | |
| barleycorn: | |
| Bohr radius [b, a.u.]: | |
| caliber [cl]: | |
| centiinch [cin]: | |
| centimeter [cm]: | |
| chain [ch]: | |
| chain (US survey) [ch]: | |
| cubit (Greek): | |
| cubit (UK): | |
| decimeter [dm]: | |
| dekameter [dam]: | |
| Earth's distance from sun: | |
| Earth's equatorial radius: | |
| Earth's polar radius: | |
| Electron radius (classical): | |
| ell: | |
| exameter [Em]: | |
| famn: | |
| fathom [fath]: | |
| fathom (US survey) [fath]: | |
| femtometer [fm]: | |
| fermi [F, f]: | |
| finger (cloth): | |
| fingerbreadth: | |
| |
| |
| furlong [fur]: | |
| furlong (US survey) [fur]: | |
| gigameter [Gm]: | |
| hand: | |
| handbreadth: | |
| hectometer [hm]: | |
| inch [in]: | |
| inch (US survey) [in]: | |
| ken: | |
| kilometer [km]: | |
| kiloparsec [kpc]: | |
| kiloyard [kyd]: | |
| league [lea]: | |
| league (statute) [st.league, lea (US)]: | |
| light year [ly]: | |
| link [li]: | |
| link (US survey) [li]: | |
| long cubit: | |
| long reed: | |
| megameter [Mm]: | |
| megaparsec [Mpc]: | |
| meter [m]: | |
| microinch: | |
| micrometer [µm]: | |
| micron [µ]: | |
| mil [mil, thou]: | |
| mile [mi, mi(Int)]: | |
| mile (Roman): | |
| mile (statute) [mi, mi (US)]: | |
| mile (US survey) [mi, mi (US)]: | |
| millimeter [mm]: | |
| nail (cloth): | |
| nanometer [nm]: | |
| nautical league (international) [NL, nl]: | |
| nautical league (UK) [n.league (UK)]: | |
| nautical mile (international) [NM, nm]: | |
| nautical mile (UK) [NM (UK), nm (UK)]: | |
| parsec [pc]: | |
| perch: | |
| petameter [Pm]: | |
| pica: | |
| picometer [pm]: | |
| Planck length: | |
| point: | |
| pole: | |
| reed: | |
| rod [rd]: | |
| rod (US survey) [rd]: | |
| Roman actus: | |
| rope: | |
| Russian archin: | |
| span (cloth): | |
| Sun's radius: | |
| terameter [Tm]: | |
| twip: | |
| vara castellana: | |
| vara conuquera: | |
| vara de tarea: | |
| X-unit [X]: | |
| yard [yd]: | |