Echocardiography

RVSP Calculator

Estimate right ventricular systolic pressure from peak tricuspid regurgitation velocity and right atrial pressure using the modified Bernoulli equation.

Enter measurements

Peak tricuspid regurgitation velocity

m/s

Use the peak of a complete, well-aligned continuous-wave Doppler envelope. Enter m/s, not cm/s.Estimated right atrial pressure

mmHg

Enter a clinically supported RAP estimate; no default is assumed.

Calculated in your browser. Inputs are not saved, added to the URL, or sent by this calculator.

Calculated result

—mmHg

Complete every required field to calculate a result.

RVSP (mmHg) = 4 × [peak TR velocity (m/s)]² + RAP (mmHg).

Educational use only. This tool and its outputs do not constitute medical advice, diagnosis, or treatment and do not replace clinical judgment. Independently verify the inputs, equations, assumptions, units, and outputs, and confirm that the tool is appropriate for your intended use before relying on a result.

What is RVSP?

RVSP means right ventricular systolic pressure. Echocardiography estimates it by adding the RV–RA systolic pressure gradient to estimated right atrial pressure.

How is it calculated?

RVSP (mmHg) = 4 × [peak TR velocity (m/s)]² + RAP (mmHg).

Clinical interpretation

The 2025 ASE right-heart guideline generally considers RVSP ≥35 mmHg abnormal. Its reference table lists ≤34 mmHg in the normal band. These are reference limits rather than a stand-alone diagnostic test. Interpret the unrounded estimate with the complete study and clinical context.

Clinical considerations

RVSP approximates pulmonary artery systolic pressure only in the absence of pulmonic stenosis or RV outflow tract obstruction. It is not mean pulmonary artery pressure.

Incomplete or misaligned TR envelopes and inaccurate RAP estimates can substantially distort RVSP. Severe tricuspid regurgitation may also undermine the pressure estimate.

Pulmonary hypertension is a hemodynamic diagnosis. An elevated RVSP supports further assessment in context; a low or unavailable estimate does not reliably exclude it. Right-heart catheterization may be needed for diagnosis and classification.

Common questions

What is the normal RVSP range?

The 2025 ASE reference table places RVSP ≤34 mmHg in its normal band and generally considers ≥35 mmHg abnormal. Reference limits must be interpreted with age, physiology, image quality, and other findings.

Does elevated RVSP mean pulmonary hypertension?

It can raise suspicion, but does not establish the diagnosis. RVSP is an echocardiographic estimate and can be affected by measurement error and outflow obstruction.

References

These calculators are educational tools. Their outputs do not constitute medical advice and do not replace clinical judgment.