A unit of blood is 450 ML – or about .12 gallons.
$1680 = price of blood per gallon. (though blood varies in price – it’s more expensive on the coasts, according to this article in Slate.
1.25 gallons = ~ the amount of blood in your body ($2100 dollars worth).
A newborn’s body holds a cup of blood ($105 dollars worth).
There are ~5,375 gallons of blood donated every day in the US ($9,030,000 dollars worth)
An adult can usually donate about 1 pint at a time (or 8-10% of total blood) ($200)
At rest, your heart pumps ~1.5 gallons of blood per minute or roughly a 1/5th of a pint per second. This works out to about $42 of blood per second (hello Douglas Adams!).
Blood lasts 42 days (hello again!)
There are 42 gallons (again!) of oil in a barrel of oil. As of today you could buy a gallon of oil for $40.06. A barrel of blood would set you back $70,560.
There are regularly blood shortages over the holidays.
You can lose about 10-15% of your blood without major problems developing.
Exsanguination is the process of bleeding to death.
picture borrowed from this site