Calculator
How are the cholesterol ratios calculated?
The Total Cholesterol is just a combination of good and bad cholesterol in your blood. It does not give much information about any heart disease risks.
Total Cholesterol Formula:
TC = HDL in mg/dL + LDL in mg/dL + (0.2 × TG in mg/dL)
At first, the triglyceride is multiplied by 0.2 and the result is then added to the HDL and the LDL levels to give us the Total Cholesterol level.
TC levels are categorized into:
- High: 240 mg/dL and above
- Borderline High: 200-239 mg/dL
- Desirable: Below 200 mg/dL
Total Cholesterol/HDL (TC/HDL) Ratio:
TC/HDL ratio = TC in mg/dL ÷ HDL in mg/dL
TC/HDL ratio risk levels are categorized into:
- Bad: 5.0 and over
- Good: 3.5 - 5.0
- Ideal: Below 3.5
LDL/HDL Ratio:
LDL/HDL ratio = LDL in mg/dL ÷ HDL in mg/dL
LDL/HDL ratio risk levels are categorized into:
- Too High: 5.0 and above
- Good: 2.0 - 5.0
- Ideal: Below 2.0
Triglyceride/HDL (TG/HDL) Ratio:
TG/HDL ratio = TG in mg/dL ÷ HDL in mg/dL
TG/HDL ratio risk levels are categorized into:
- Too High: 4.0 and above
- High: 2.0 - 4.0
- Ideal: 2.0 or below
Unit Conversion (mmol/L to mg/dL):
If the measurements are available in mmol/L, they are converted into mg/dL using the below conversion method:
- For total cholesterol (TC), HDL, and LDL cholesterol: multiply the mmol/L value with 38.67
- For triglycerides (TG): multiply the value in mmol/L by 88.57
