3 liters is equal to how many millimetres
To convert liters to millimeters, you need to know that 1 liter is equal to 1,000 millimeters. Therefore, to find out how many millimeters are in 3 liters, you would multiply 3 liters by 1,000 millimeters/liter:
3 liters * 1,000 millimeters/liter = 3,000 millimeters
Therefore, 3 liters is equal to 3,000 millimeters.