ApoB : ApoA-1 Ratio Calculator

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ApoB (mg/dL)

ApoA-1 (mg/dL)

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How this is worked out. ApoB divided by ApoA-1, both mg/dL. The ratio reported in INTERHEART (Yusuf et al., Lancet 2004).

Target <0.6. The INTERHEART study across 52 countries found this ratio outperformed all other lipid measures for predicting myocardial infarction.

The bands on this page

Result	What it is called here
under 0.5	Excellent
0.5 to 0.6	Good
0.6 to 0.8	Elevated risk
over 0.8	High risk

What goes in, and where each number comes from

Every input is a real test. Follow one to see its normal range, its optimal range and what moves it — the calculation is only as good as the numbers you feed it.

ApoB (Apolipoprotein B) →$18.00

Apolipoprotein A-1 →$26.10

What it costs to actually get these numbers

The 2 tests on their own	$44.10
The cheapest panel that covers them — Real Cardiovascular Risk (9 markers)	$187.60

Order the tests, not the panel. This calculation needs 2 results, and buying them individually is $143.50 cheaper than the smallest panel that happens to contain them. The panel is worth it only if you want the other 7 markers on it too.

Order Real Cardiovascular Risk →

Prices are Marek Diagnostics with the 10% code already applied, and they are what was filed when this page was built — check the cart. Ordering through these links pays a commission at no cost to you.

What could have moved the measurement, not the marker

A wrong number and a real change look identical on a report. These are the reasons a result here can be an artifact of how the blood was drawn or run, and they are worth ruling out before anything else.

timingFasting state

Less affected by eating than a calculated LDL, which is one of its advantages — but it still shifts modestly.

What to do: Fasted is preferable; consistency matters more.

drugStatins, ezetimibe, PCSK9 inhibitors

All lower ApoB, which is the point. The interference is in interpretation — a good ApoB on treatment is not the same as a good untreated one.

What to do: Record what you were taking at each draw.

drugAndrogens, and estrogen in the other direction

Testosterone lowers ApoA1; estrogen raises it. Both are real drug effects rather than changes in cardiovascular risk of the same size.

What to do: Record your hormone status on the result — otherwise a low ApoA1 on TRT reads as a risk finding rather than a drug effect.

stateAcute illness

ApoB falls during acute illness along with the rest of the lipid panel, so a post-admission draw understates your true particle count.

What to do: Wait six weeks after anything significant.

1 more interferences are listed on the marker pages themselves: ApoB (Apolipoprotein B) · Apolipoprotein A-1.

This tool does not diagnose anything. It puts a number next to a published interval and shows the arithmetic that got there. It cannot see your symptoms, your medications, your history or the assay your lab ran. A result outside the outer bounds belongs in front of a clinician, not in a supplement search.

Where to go with this

Read one of these results on its ownType a value, pick your units and sex, and see where it sits and what could have moved it.The Real Cardiovascular Risk9 markers, $187.60 with the code — what it settles and what it does not.Every marker on this site103 markers, each with the normal range, the optimal range and what moves it.

The other cardiovascular calculations

Triglyceride : HDL RatioA free surrogate for insulin resistance and small dense LDL, hiding inside any standard lipid panel.AIP — Atherogenic Index of PlasmaA log-transformed triglyceride:HDL ratio that correlates with LDL particle size and cardiovascular risk.Non-HDL CholesterolTotal cholesterol minus HDL — capturing every atherogenic particle in one number. A close cousin of ApoB, free on any lipid panel.