Question: how many liters in red blood cells?
Answer: There are about 5 million red cells in 1 mm3 of blood - which about 50 times bigger than a single drop! 1000 mm3 make 1 cm3 (1 ml), & 1000 cm3 make 1 dm3 (1 litre). There are, on average, 5.5 litres of blood in the human body. How many red cells are there in your body (approximately)?