| | Conditions Treatments | Obesity How many ml of blood are in a 177lbs male? There is no standard amount of blood in a person based on their weight. The average adult has about 5 litres (about 1.3 gallons) of blood in their body. Obesity - Related Articles Best Ways to Lose Belly Fat for Women Benefits of Rhodiola Rosea Extract Can sugar give you a red bumpy rash that itches? How to Remove Flat Warts on the Face Chemo Treatment for Stage IV Lung Cancer Fat Burning Foods to Eat to Lose Weight About Strained Backs