Canonical: https://echosuite.app/guides/rv-size-calc/ # Right ventricular size calculator and measurement guide Browse right ventricular dimensions, area, RVOT and wall measurements, and 3D volume methods within the existing RV size tool. Created by [Mohammed Kamareddine, MD](https://echosuite.app/about/) · [Sources & educational scope](https://echosuite.app/about/) [Open interactive calculator →](https://echosuite.app/calculators/#rv-size-calc) ## Method Indexed measurement = measured dimension, area or 3D volume ÷ BSA Use the measurement units shown below. Some fields apply only to a selected method or condition; follow the interactive tool’s method choices. The interactive tool keeps missing measurements incomplete and provides its method-specific results and reference context. ## Measurements and acquisition ### Measurement Enter the measured value in the displayed unit - Dimensions - ED/ES area - 3D volumes - RVOT - Wall thickness - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### RVD1 · basal cm Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### RVD2 · mid cm Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### RVD3 · length cm Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### ED area cm² Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### ES area cm² Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### 3D EDV mL Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### 3D ESV mL Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### PLAX cm Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### Proximal PSAX cm Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### Distal PSAX cm Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### RV wall thickness cm Enter the measured value in the displayed unit - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ### BSA · for indices m² Enter the measured value in the displayed unit · Optional - Confirm the variable matches the selected formula. - Use the unit displayed beside the field. - Keep measurements from the same representative hemodynamic state. ## Sources and method context ASE · 2025 · Echocardiographic Assessment of the Right Heart in Adults · Table 1; RV size pp.143–151; function pp.156–160; TAPSE/PASP pp.156–157 [Primary reference](https://www.asecho.org/wp-content/uploads/2026/08/ASE-Right-Heart-Guidelines-May-2025.pdf) - Acquisition and interpretation · Table 1; RV size pp.143–151; function pp.156–160; TAPSE/PASP pp.156–157 Method-specific acquisition and reference context. Arithmetic uses entered measurements; clinical interpretation remains subject to image quality and study context. Catalogue review status: Exact guideline locator mapped · clinical sign-off pending These pages describe the educational tool. 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