Total Cholesterol Formula:
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Total cholesterol is a measure of the total amount of cholesterol in your blood, including HDL (high-density lipoprotein), LDL (low-density lipoprotein), and VLDL (very low-density lipoprotein) cholesterol. It is an important indicator of cardiovascular health.
The calculator uses the standard formula for total cholesterol calculation:
Where:
Explanation: This formula calculates total cholesterol by summing HDL, LDL, and VLDL cholesterol (estimated as triglycerides divided by 2.2).
Details: Monitoring total cholesterol levels is crucial for assessing cardiovascular risk. High cholesterol levels can lead to plaque buildup in arteries, increasing the risk of heart disease and stroke.
Tips: Enter HDL, LDL, and Triglycerides values in mmol/L. All values must be non-negative numbers. The calculator will provide the total cholesterol result in mmol/L.
Q1: What are healthy cholesterol levels?
A: Generally, total cholesterol below 5.2 mmol/L is desirable, 5.2-6.2 mmol/L is borderline high, and above 6.2 mmol/L is high.
Q2: Why divide triglycerides by 2.2?
A: This conversion estimates VLDL cholesterol, as VLDL carries most triglycerides in the blood (VLDL ≈ Triglycerides/2.2).
Q3: When should cholesterol be tested?
A: Adults should have cholesterol checked every 4-6 years, or more frequently if risk factors exist. Fasting for 9-12 hours before testing is typically recommended.
Q4: Are there limitations to this calculation?
A: This formula provides an estimate. Direct measurement may be more accurate in certain clinical situations, especially when triglyceride levels are very high.
Q5: How can I improve my cholesterol levels?
A: Through healthy diet, regular exercise, maintaining healthy weight, and if necessary, medication as prescribed by your doctor.