| Abbreviation | Unit | 1 Base Unit |
|---|---|---|
| m | metre | 1 |
| 0.1 ft | tenth of foot | 0.03048 |
| 0.1 ft[US] | tenth of US survey foot | 0.03048006096012192 |
| 0.1 in | tenth of inch | 0.00254 |
| 0.1 yd | tenth of yard | 0.09144 |
| 1/16 in | sixteenth of inch | 0.0015875 |
| 1/2 ft | half of Foot | 0.1524 |
| 1/32 in | thirty-second of inch | 0.00079375 |
| 1/64 in | sixty-fourth of inch | 0.000396875 |
| 10 ft | ten foot | 3.048 |
| 10 in | ten inch | 0.254 |
| 10 km | 10 kilometre | 10000 |
| 100 ft | hundred foot | 30.48 |
| 100 km | 100 kilometre | 100000 |
| 1000 ft | thousand foot | 304.8 |
| 30 ft | thirty foot | 9.144 |
| 30 m | thirty metres | 30 |
| Em | exametre | 1E+18 |
| Gm | gigametre | 1000000000 |
| Mm | megametre | 1000000 |
| Tm | terametre | 1000000000000 |
| angstrom | angstrom | 1E-10 |
| chain | chain | 20.1168 |
| chain[BnA] | British chain [Benoit 1895 A] | 20.1167824 |
| chain[BnB] | British chain [Benoit 1895 B] | 20.116782494375872 |
| chain[Cla] | Clarke chain | 20.1166195164 |
| chain[Ind37] | Indian Chain [1937] | 20.11669506 |
| chain[SeT] | British chain [Sears 1922 truncated] | 20.116756 |
| chain[Se] | British chain [Sears 1922] | 20.116765121552632 |
| chain[US] | US survey chain | 20.11684023368047 |
| cm | centimetre | 0.01 |
| dam | dekametre | 10 |
| dm | decimetre | 0.1 |
| fathom | international fathom | 1.8288 |
| fm | femtometre | 1E-15 |
| ft | foot | 0.3048 |
| ft[BnA] | British foot [Benoit 1895 A] | 0.3047997333333333 |
| ft[BnB] | British foot [Benoit 1895 B] | 0.30479973476327077 |
| ft[Br36] | British foot [1936] | 0.3048007491 |
| ft[Br65] | British foot [1865] | 0.30480083333333335 |
| ft[Cla] | Clarke foot | 0.3047972654 |
| ft[GC] | Gold Coast foot | 0.3047997101815088 |
| ft[Ind37] | indian foot [1937] | 0.30479841 |
| ft[Ind62] | indian foot ]1962] | 0.3047996 |
| ft[Ind75] | indian foot [1975] | 0.3047995 |
| ft[Ind] | indian foot | 0.30479951024814694 |
| ft[SeT] | British foot [Sears 1922 truncated] | 0.30479933333333337 |
| ft[Se] | British foot [Sears 1922] | 0.3047994715386762 |
| ft[US] | US survey foot | 0.3048006096012192 |
| fur[US] | furlong US survey | 201.16840233680466 |
| hm | hectometre | 100 |
| in | inch | 0.0254 |
| in[US] | US survey inch | 0.0254000508001016 |
| km | kilometre | 1000 |
| link | link | 0.201168 |
| link[BnA] | British link [Benoit 1895 A] | 0.201167824 |
| link[BnB] | British link [Benoit 1895 B] | 0.2011678249437587 |
| link[Cla] | Clarke link | 0.201166195164 |
| link[SeT] | British link [Sears 1922 truncated] | 0.20116756 |
| link[Se] | British link [Sears 1922] | 0.2011676512155263 |
| link[US] | US survey link | 0.2011684023368047 |
| m[Ger] | German legal metre | 1.0000135965 |
| mi | mile | 1609.344 |
| mi[US] | US survey mile | 1609.3472186944373 |
| mi[nautUK] | United Kingdom nautical mile | 1853 |
| mi[naut] | international nautical mile | 1852 |
| mil | mil | 2.54E-05 |
| mm | millimetre | 0.001 |
| nm | nanometre | 1E-09 |
| pm | picometre | 1E-12 |
| rod[US] | rod US Survey | 5.029210058420117 |
| um | micrometre | 1E-06 |
| yd | yard | 0.9144 |
| yd[BnA] | British yard [Benoit 1895 A] | 0.9143992 |
| yd[BnB] | British yard [Benoit 1895 B] | 0.9143992042898124 |
| yd[Cla] | Clarke yard | 0.9143917962 |
| yd[Ind37] | Indian yard [1937] | 0.91439523 |
| yd[Ind62] | Indian yard [1962] | 0.9143988 |
| yd[Ind75] | Indian yard [1975] | 0.9143985 |
| yd[Ind] | Indian yard | 0.9143985307444408 |
| yd[SeT] | British yard [Sears 1922 truncated] | 0.914398 |
| yd[Se] | British yard [Sears 1922] | 0.9143984146160287 |
| yd[US] | US survey yard | 0.9144018288036576 |
| nmi | international nautical mile | 1852 |