Remember K H D | d c m (kilo, hecto, deka, (liter, meter, gram), deci, centi, milli). An easy way to remember this is King Henry Died Drinking Chocolate Milk. What you have to do is, find where you want to start, in terms of the conversion. Then, you find the conversion that you want to move it to. However many letters it is to the right or left, you will move the decimal place that many times in that direction. So the answer to this problem, is 1900 ml equals 1.9 liters.
19,000 ml
50 ML I learned that at school when I was 12.
1.29 L
2.481 L = 2,481 mL
0.0817 L = 81.7 mL
9,000 mL = 9 L
1.25 L = 1250 mL
5.03 L = 5,030 ml
398 mL = 0.398 L
102 L = 102,000 mL
0.01 L = 10 mL
26.78 mL = 0.02678 L
350 L = 350,000 mL