You use a ruler that is marked with millimetres. Alternatively, you can use a ruler that is marked with inches and then multiply by 25.4 to get the result in millimetres, or use a ruler marked with centimetres and multiply by 10.
Use a tape measure or ruler that has millimetre graduation marks.
Millimeters can't be converted to liters. Millimeters measure length, while liters measure volume.
Millimeters can't be converted with liters. Millimeters measure length, while liters measure volume.
Centiliters can't be converted to millimeters. Millimeters measure length, while centiliters measure volume.
Millimeters can't be converted to liters. Millimeters measure length, while liters measure volume.
Millimeters can't be converted to liters. Millimeters measure length, while liters measure volume.
Millimeters can't be converted with liters. Millimeters measure length, while liters measure volume.
Millimeters can't be converted to liters. Millimeters measure length, while liters measure volume.
Millimeters can't be converted with teaspoons. Millimeters measure length, while teaspoons measure volume.
Millimeters can't be converted with liters. Millimeters measure length, while liters measure volume.
Millimeters can't be converted with kilograms. Millimeters measure length, while kilograms measure mass.
Liters can't be converted to millimeters. Liters measure volume, while millimeters measure length.
Millimeters can't be converted to liters. Millimeters measure length, while liters measure volume.