You can determine how much 150 ml is in other units of measure by using a conversion tool. This can be a helpful tool when needing to convert many units without having to memorize how much of each unit is in larger units. Recipes may often require ml to be converted to another unit of measure when editing the recipe. 150 ml is equal to 2/3 cups. There is a total of 250 ml in one full cup. The equivalents can be shown in measurements used by other countries, such as Canada, the United States or the United Kingdom.