Daily How Much

A standard whole-blood donation is about 450–500 mL (close to 1 pint), plus a few small tubes taken for lab testing.

Most whole-blood donations collect about one pint (450–500 mL) plus a few small tubes for testing.

Most adults carry around 4.5–5.5 liters of blood, with total volume shifting with body size, sex, and pregnancy.

Most adults carry around 4.5–5.5 liters of blood, and the total shifts with body size, age, pregnancy, and hydration.

A standard whole blood donation collects about 1 pint (around 470 mL), plus a few small test tubes for screening.

A standard whole blood donation collects about 450–470 mL (just under one pint) in around 5–10 minutes.

A standard whole blood donation collects just under a pint (around 450–470 mL), which is usually less than one-tenth of an adult’s blood volume.

A standard whole-blood donation is about one pint (around 470 mL), and other donation types collect different amounts based on the method and your size.

Most people lose about 2–3 tablespoons (30–45 mL) of menstrual blood per period, and 80 mL is often used as the upper cutoff for heavy bleeding.

Most people lose about 30–40 mL of blood per period, while bleeding above 80 mL is often treated as heavy menstrual bleeding.