Health & Fitness

Blood Volume Calculator (Nadler's Formula)

Enter height, weight and sex.

By TheCalcTools Updated Formula checked and tested

Your numbers

Your results

Estimated blood volume (L)
Estimated blood volume (L)
—
Per kg (mL/kg)
—
10% of blood volume (mL)
—
15% of blood volume (mL)
—

Blood Volume Calculator (Nadler's Formula) by TheCalcTools

How the Blood Volume Calculator (Nadler's Formula) works

Nadler, Hidalgo and Bloch (1962) derived blood volume equations from height and weight: men 0.3669H³ + 0.03219W + 0.6041, women 0.3561H³ + 0.03308W + 0.1833 litres (H in metres, W in kg).

Adults have roughly 65 to 75 mL of blood per kg. A blood donation takes about 470 mL.

The formula

Men: 0.3669 H³ + 0.03219 W + 0.6041 L

Worked example

Using the default values shown in the calculator:

SexMale
Height (cm)178
Weight (kg)80
  1. A 178 cm, 80 kg man has about 5.25 L of blood (65.6 mL/kg).

Result:

Estimated blood volume (L)5.25
Per kg (mL/kg)65.6
10% of blood volume (mL)525
15% of blood volume (mL)787

Frequently asked questions

How much blood does a person have?

Roughly 5 to 6 litres for an average man and 4 to 5 litres for an average woman.

Sources and further reading

Body Surface Area (BSA) CalculatorBSA is used to scale drug doses and cardiac output Total Body Water Calculator (Watson Formula)Enter age, sex, height and weight to estimate how much water your body contains IV Drip Rate Calculator (Drops per Minute and mL/h)Enter the volume, infusion time and giving-set drop factor to get the drip rate Lean Body Mass CalculatorHow much of your weight is not fat? BMI CalculatorCalculate your body mass index (BMI) from your height and weight, see which adult… Body Fat CalculatorEstimate your body fat percentage from a tape measure, using the U.S

More in Health & Fitness · All calculators

This calculator gives general estimates for information and education. It is not medical advice and does not diagnose anything. Talk to a qualified health professional about your own situation. See our disclaimer.