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Calculation Machine

Cholesterol Ratio Risk Calculator

Total/HDL and LDL/HDL ratios with risk bands.

Reviewed by James Whitfield · How we check our maths

Your values

ⓘ Live results

Results
Total / HDL ratio
3.64
Risk band
Average
LDL / HDL ratio
2.18
Non-HDL cholesterol
145 mg/dL

Quick answer

Total-to-HDL ratio is a stronger predictor than total cholesterol alone; below 3.5 is ideal.

The formula

ratio = total cholesterol / HDL

Worked example

Worked example

Using the values the calculator loads with.

Inputs

  • Total cholesterol200 mg/dL
  • HDL55 mg/dL
  • LDL120 mg/dL

Result

  • Total / HDL ratio3.64
  • Risk bandAverage
  • LDL / HDL ratio2.18
  • Non-HDL cholesterol145 mg/dL

How to use the Cholesterol Ratio Risk Calculator

  1. 1Take the values from a recent fasting lipid panel.
  2. 2Enter total, HDL and LDL in mg/dL.
  3. 3Discuss any elevated ratio with your doctor rather than self-treating.

Frequently asked questions

Convert from mmol/L?

Multiply mmol/L by 38.67 for cholesterol values.

How do I improve the ratio?

Raising HDL through exercise often moves the ratio faster than lowering total cholesterol alone.

About this calculator