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Health · Cardiovascular & Blood Pressure

Cardiac Output, Stroke Volume & Index Calculator

Rearrange entered cardiac output, stroke volume, heart rate, and body-surface-area identities.

Health · Cardiovascular & Blood Pressure

Enter your measurements

Professional entered-value arithmetic · private in-browser calculation
Professional intended use

This route reproduces arithmetic from verified source measurements. It does not validate the measurements, diagnose, select treatment, or replace the applicable clinical protocol.

Health values stay in this browser tab. They are not added to the URL, analytics, storage, or a cloud record.

Health result

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Enter valid values to see the result.

Your entries are calculated in this browser and are not submitted to 365CALCS.COM.

Quick guide

How to use this calculator

  1. Use the labels and unit notes to enter the requested measurement, date, time, or observation exactly as recorded.
  2. Check the visible method, population, and unit basis before using the result; switch modes rather than converting values mentally.
  3. Read the calculation audit and limitations together. The result supports measurement or tracking and does not replace diagnosis, treatment, or urgent medical assessment.

Calculation method

How the cardiac output, stroke volume & index calculator works

CO = SV × HR ÷ 1000; SV = CO × 1000 ÷ HR; CI = CO ÷ BSA.

The result describes only the entered observations. It does not classify cardiovascular health, diagnose a condition, predict an event, or recommend treatment.

Worked example

Cardiac Output, Stroke Volume & Index example

70 mL/beat at 70 beats/min gives 4.9 L/min cardiac output.

CO = SV × HR ÷ 1000; SV = CO × 1000 ÷ HR; CI = CO ÷ BSA.

Supported inputs

Precision and limits

Supported purpose

The route rejects derived cardiac output outside 0.1–40 L/min, stroke volume outside 1–500 mL/beat, and cardiac index outside 0.1–20 L/min/m² as unsupported combinations. These conservative calculation caps are not normal ranges or treatment targets. The identity does not validate thermodilution, Fick, echocardiographic, or other source measurements and supplies no treatment advice.

Measurement quality

The output is only as reliable as the entered measurement, device, timing, units, and applicable reference population. Recheck unexpected values against the original record.

Clinical boundary

This calculator does not diagnose a condition, choose treatment, change medication, or determine that an urgent symptom is safe to monitor at home. Contact an appropriate health professional or local emergency service when the situation may be urgent.

Privacy

Entered health values and results stay in this browser tab. They are not placed in URLs, analytics, logs, local storage, session replay, or a cloud record by this calculator.

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