Estimate VLDL cholesterol using the Friedewald equation · Assess cardiovascular risk
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Faiq Ur Rahman is a web designer, digital product developer, and founder of Toolraxy, a growing platform of web-based calculators and utility tools. He specializes in building structured, user-friendly tools focused on health, finance, productivity, and everyday problem-solving.
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VLDL (Very Low-Density Lipoprotein) is a type of lipoprotein produced by the liver that carries triglycerides and cholesterol through the bloodstream. It’s called “very low-density” because it contains a high proportion of triglycerides relative to protein. VLDL particles are the precursors to LDL, as VLDL circulates, triglycerides are removed, and it becomes denser, eventually forming LDL. VLDL matters because elevated levels are associated with increased cardiovascular disease risk. VLDL particles are small enough to enter the arterial wall and contribute to the formation of atherosclerotic plaque. They also promote inflammation and endothelial dysfunction, further increasing cardiovascular risk.
Enter your Total Cholesterol in mg/dL (typically 100–300 mg/dL).
Enter your HDL Cholesterol in mg/dL (typically 30–100 mg/dL).
Enter your Triglycerides in mg/dL (typically 50–400 mg/dL).
Select your preferred formula: Friedewald (classic) or Sampson (NIH).
Use the quick example buttons to test common lipid profile scenarios.
Click the Calculate button (or simply wait, results update automatically).
View your VLDL Cholesterol level with a color-coded badge.
Check your LDL and Non-HDL cholesterol values in the results grid.
Review your Risk Category and personalized Recommendation.
Copy, share, or embed your results using the buttons below.
The calculator estimates VLDL cholesterol using two different formulas, both based on your triglyceride level:
Friedewald Formula:VLDL = Triglycerides ÷ 5 (for mg/dL)LDL = Total Cholesterol − HDL − VLDL
Sampson (NIH) Formula:VLDL = Triglycerides ÷ 6 (for mg/dL)LDL = Total Cholesterol − HDL − VLDL
Both formulas estimate VLDL from triglycerides because VLDL particles are the primary carriers of triglycerides in the blood. The Friedewald formula has been the clinical standard for decades, while the Sampson formula (developed by the NIH) provides a more accurate estimate across a wider range of triglyceride levels.
Non-HDL Cholesterol:Non-HDL = Total Cholesterol − HDL
Non-HDL cholesterol includes all “bad” cholesterol particles (LDL, VLDL, and IDL) and is a strong predictor of cardiovascular risk.
VLDL Risk Categories:
Optimal: VLDL < 20 mg/dL
Borderline: VLDL 20–29 mg/dL
High: VLDL 30–39 mg/dL
Very High: VLDL ≥ 40 mg/dL
Let’s calculate VLDL for a patient with the following lipid values:
Inputs:
Total Cholesterol: 200 mg/dL
HDL: 45 mg/dL
Triglycerides: 150 mg/dL
Formula: Friedewald
Step 1 – Calculate VLDL:
VLDL = 150 ÷ 5 = 30.0 mg/dL
Step 2 – Calculate LDL:
LDL = 200 − 45 − 30 = 125.0 mg/dL
Step 3 – Calculate Non-HDL:
Non-HDL = 200 − 45 = 155.0 mg/dL
Step 4 – Determine Risk Category:
VLDL of 30.0 mg/dL falls in the Borderline category (20–29 mg/dL is borderline; 30 is borderline-high).
Step 5 – Interpretation:
“Your VLDL cholesterol is borderline high. Consider reducing saturated fats, increasing exercise, and monitoring your lipid panel regularly. Your triglycerides are elevated. Consider dietary changes and increased physical activity.”
The patient’s VLDL of 30 mg/dL is borderline, suggesting they should discuss lipid management with their healthcare provider.
The VLDL Cholesterol Calculator estimates VLDL cholesterol using either the Friedewald formula (VLDL = Triglycerides ÷ 5) or the Sampson (NIH) formula (VLDL = Triglycerides ÷ 6). It also calculates LDL and non-HDL cholesterol, providing a comprehensive lipid panel assessment with risk classification.
VLDL carries triglycerides from the liver to tissues, while LDL carries cholesterol. VLDL particles are larger and less dense than LDL. Both are “bad” cholesterol that can contribute to plaque buildup in arteries, but VLDL is more closely linked to triglyceride levels and metabolic syndrome.
The Friedewald formula is a classic equation for estimating VLDL and LDL: VLDL = Triglycerides ÷ 5, and LDL = Total − HDL − VLDL. It’s been widely used in clinical practice for decades. The Sampson formula is a more recent alternative: VLDL = Triglycerides ÷ 6.
The Sampson formula is a newer equation developed by the NIH that provides a more accurate estimate of VLDL from triglycerides, especially at lower levels: VLDL = Triglycerides ÷ 6. The calculator includes both formulas for flexibility.
Normal VLDL is below 20 mg/dL. Borderline is 20–29 mg/dL, High is 30–39 mg/dL, and Very High is ≥ 40 mg/dL. VLDL is typically estimated, not directly measured, and is derived from triglycerides.
Yes, but the formulas may be less accurate at very high levels. The Friedewald formula is less accurate when triglycerides exceed 400 mg/dL. The Sampson formula may be more accurate in these cases. For triglycerides over 800 mg/dL, direct VLDL measurement is recommended.
Non-HDL cholesterol is your total cholesterol minus your HDL. It includes all “bad” cholesterol particles (LDL, VLDL, IDL) and is a strong predictor of cardiovascular risk. The calculator provides your non-HDL level alongside your VLDL and LDL.
The formulas use different divisors. Friedewald divides triglycerides by 5, while Sampson divides by 6. The Sampson formula has been validated more recently and may be more accurate for lower triglyceride levels and in certain populations.
VLDL is estimated from triglycerides, which are significantly affected by food intake. For accurate VLDL estimation, you should fast for 8–12 hours before your lipid panel. The calculator itself doesn’t require fasting, but accurate inputs do.
VLDL is not typically measured directly in routine clinical practice. It is usually estimated from triglycerides using formulas like those in this calculator. Direct VLDL measurement requires specialized laboratory testing and is rarely used.
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