In the UK and Ireland as well as the rest of Europe, lowercase l is used with prefixes, though whole litres are often written in full (so, "750 ml" on a wine bottle, but often "1 litre" on a juice carton).
No Reino Unido e Irlanda, así como no resto de Europa, a letra minúscula l adoita empregarse con prefixos, mentres que os litros completos a miúdo aparecen coa palabra completa (é dicir, "750 ml" pero "1 litro" en recipientes de líquidos).