Stroke Volume Calculator

Your details

Choose the method that matches the measurements you have. The volume method is the most common clinical approach.
The volume of blood in the left ventricle just before it contracts (when it is most full). Normal range is about 100-160 mL.
mL
The volume of blood remaining in the left ventricle after contraction. Normal range is about 40-70 mL.
mL
Used to compute cardiac output from stroke volume (for volume and Doppler methods).
bpm
Used to calculate body surface area (BSA) for cardiac index and stroke volume index.
cm
Used to calculate body surface area (BSA) for cardiac index and stroke volume index.
kg
Stroke VolumeNormal range
70mL/beat

Volume of blood ejected per heartbeat

Ejection Fraction58.3%
Cardiac Output4.9L/min
Body Surface Area1.84m²
Cardiac Index2.66L/min/m²
Stroke Volume Index37.9mL/beat/m²
70 mL
Low<60Normal60-100Athletic / high output100+

Stroke volume: 70.0 mL/beat

  • Your stroke volume of 70.0 mL/beat is within the typical resting range of 60-100 mL for adults.
  • Ejection fraction of 58.3% is within the normal range (>=55%), indicating preserved systolic function.
  • Cardiac output of 4.90 L/min is within the normal resting range of 4-8 L/min.
  • Cardiac index of 2.66 L/min/m² accounts for body size. Normal range is 2.5-4.0 L/min/m².

Next stepStroke volume is one component of overall cardiac function. Pair it with clinical context, imaging findings, and other hemodynamic parameters. This calculator is for educational and screening use only.

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