Peta dunia menunjukkan metrikasi, dengan kode warna menurut tahun konversi: dari tahun 1800 (hijau) sampai 1980 (merah). Hitam menandakan negara yang belum mengadopsi sistem-SI: Myanmar, Liberia, dan Amerika Serikat. Kanada dan Britania Raya keduanya memiliki penggunaan yang luas untuk kedua sistem satuan (metrik dan imperial), seperti batas kecepatan di Inggris dan laporan tinggi badan di Kanada.
English: English (en): This nation has adopted the metric system by:    1800    1820    1840    1860    1880    1900    1920    1940    1960    1980    Data currently not available.    Countries which have not adopted the metric system. (Note regarding the United Kingdom and the United States: Data indicates UK was metric in the 1960s – they made a decision to go metric in the 1960s and made a legal commitment to do so in 1973 as part of its conditions for membership in the EEC (now the EU), but then did little about the decision. The UK now uses a combination of metric and imperial units however, and it is illegal to sell products weighed only in imperial measurements but imperial units may be shown alongside metric weights; imperial measurements have not been taught in schools since the 1970s but most adults and children know their height and weight only in imperial units. The European Union no longer requires the United Kingdom to convert completely to metric. This is similar to the situation occurring in the US, where metric is a legal system for lengths and weights, though its metrication process has been very slow due to public pressure and lack of funding.) Deutsch: Deutsch (de): Dieser Staat übernahm das metrische Einheitensystem vor:    1800    1820    1840    1860    1880    1900    1920    1940    1960    1980    Momentan keine Daten verfügbar    Diese Nation hat das metrische System nicht übernommen. Français : français (fr): Cette nation a adopté le système métrique avant:    1800    1820    1840    1860    1880    1900    1920    1940    1960    1980    Les données actuellement non disponibles.    Les États qui n'ont pas adopté le système métrique. Italiano: italiano (it): La nazione ha adottato il Sistema internazionale di unità di misura a partire dall'anno:    1800    1820    1840    1860    1880    1900    1920    1940    1960    1980    Al momento nessun dato disponibile    Questa nazione non ha adottato il sistema internazionale. Nederlands: Nederlands (nl): Dit land heeft het metrieke stelsel aangenomen per:    1800    1820    1840    1860    1880    1900    1920    1940    1960    1980    Gegevens ontbreken.    Landen die het metrieke stelsel niet hebben aangenomen. Polski: polski (pl): Te państwa przyjęły system metryczny w:    1800    1820    1840    1860    1880    1900    1920    1940    1960    1980    Dane nie są obecnie dostępne.    Kraje, które nie przyjęły systemu metrycznego. Português: português (pt): Esta nação adoptou o sistema métrico pelo ano:    1800    1820    1840    1860    1880    1900    1920    1940    1960    1980    Dados actualmente indisponíveis.    Países que não adoptaram o sistema métrico. Русский: русский (ru): Государства, принявшие метрическую систему в:    1800 г.    1820 г.    1840 г.    1860 г.    1880 г.    1900 г.    1920 г.    1940 г.    1960 г.    1980 г.    Данные в настоящее время не доступны.    Государства, которые не приняли метрическую систему.