LV Calculator
Use our free Lvcalculator Calculator to get personalized health results. Based on validated medical formulas and clinical guidelines.
Formula
EF = (EDV - ESV) / EDV x 100; Teichholz: V = 7D^3 / (2.4 + D)
Where EF = Ejection Fraction, EDV = End-Diastolic Volume, ESV = End-Systolic Volume. The Teichholz formula estimates ventricular volume from the internal diameter D (in cm). Fractional Shortening = (LVEDD - LVESD) / LVEDD x 100. LV Mass uses the Devereux ASE-corrected formula incorporating septal thickness, posterior wall thickness, and LV diameter.
Worked Examples
Example 1: Normal LV Function Assessment
Problem: A 45-year-old patient has echocardiographic measurements: LVEDD = 48 mm, LVESD = 30 mm, IVSd = 10 mm, PWd = 10 mm, HR = 70 bpm. Calculate LV function parameters.
Solution: Teichholz EDV = 7 x (4.8)^3 / (2.4 + 4.8) = 7 x 110.59 / 7.2 = 107.5 mL\nTeichholz ESV = 7 x (3.0)^3 / (2.4 + 3.0) = 7 x 27 / 5.4 = 35.0 mL\nStroke Volume = 107.5 - 35.0 = 72.5 mL\nEjection Fraction = 72.5 / 107.5 x 100 = 67.4%\nFractional Shortening = (48 - 30) / 48 x 100 = 37.5%\nCardiac Output = 72.5 x 70 / 1000 = 5.08 L/min
Result: EF: 67.4% (Normal) | SV: 72.5 mL | CO: 5.08 L/min | FS: 37.5%
Example 2: Dilated Cardiomyopathy Assessment
Problem: A 62-year-old patient with heart failure: LVEDD = 68 mm, LVESD = 58 mm, IVSd = 8 mm, PWd = 8 mm, HR = 95 bpm.
Solution: Teichholz EDV = 7 x (6.8)^3 / (2.4 + 6.8) = 7 x 314.43 / 9.2 = 239.2 mL\nTeichholz ESV = 7 x (5.8)^3 / (2.4 + 5.8) = 7 x 195.11 / 8.2 = 166.5 mL\nStroke Volume = 239.2 - 166.5 = 72.7 mL\nEjection Fraction = 72.7 / 239.2 x 100 = 30.4%\nFractional Shortening = (68 - 58) / 68 x 100 = 14.7%\nRWT = (2 x 8) / 68 = 0.24
Result: EF: 30.4% (Reduced - HFrEF) | SV: 72.7 mL | FS: 14.7% | Eccentric Hypertrophy
Frequently Asked Questions
Does LV Calculator work offline?
Once the page is loaded, the calculation logic runs entirely in your browser. If you have already opened the page, most calculators will continue to work even if your internet connection is lost, since no server requests are needed for computation.
Is LV Calculator free to use?
Yes, completely free with no sign-up required. All calculators on NovaCalculator are free to use without registration, subscription, or payment.
Can I share or bookmark my calculation?
You can bookmark the calculator page in your browser. Many calculators also display a shareable result summary you can copy. The page URL stays the same so returning to it will bring you back to the same tool.
Can I use LV Calculator on a mobile device?
Yes. All calculators on NovaCalculator are fully responsive and work on smartphones, tablets, and desktops. The layout adapts automatically to your screen size.
How do I get the most accurate result?
Enter values as precisely as possible using the correct units for each field. Check that you have selected the right unit (e.g. kilograms vs pounds, meters vs feet) before calculating. Rounding inputs early can reduce output precision.
How accurate are the results from LV Calculator?
All calculations use established mathematical formulas and are performed with high-precision arithmetic. Results are accurate to the precision shown. For critical decisions in finance, medicine, or engineering, always verify results with a qualified professional.