An diofar eadar na mùthaidhean a rinneadh air "Meatair"

Chaidh 6 baidhtichean a chur ris ,  6 bhliadhnaichean air ais
(Chaidh duilleag le "thumb|250px 'S e aonad mheudachaidh airson fad a th'ann am '''meatair''' (Greugais: ''μέτρον'', a tha a' c..." a chruthachadh)
 
|-
| 1 meatair ||≡ ||style="text-align:right;"|1×10||[[ångström]]||
| 1 ångström||≡ ||style="text-align:right;"|1×101×10−10||meatair
|-
| 1 [[nanomeatair]] ||≡ ||style="text-align:right;"|10||ångström||
| 1 ångström||≡ ||style="text-align:right;"|100 ||[[picomeatair]]
|}
 
==Ceanglaichean a-muigh==
*[http://www.unionlatine.com/history.php Union Latine]
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