Remnant cholesterol calculator
The cholesterol in the leftover, fat-carrying particles in your blood, worked out from your lipid panel. Higher levels are linked to more heart disease. Type your results in the units on your report and it works out Remnant-C as you type, in your browser.
AI-verified against cited sources. Awaiting expert reviewLast reviewed 2026-10-03Heart & Cholesterol
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Educational information, not medical advice. Blood Test Tracker doesn’t diagnose or treat, and it doesn’t replace your clinician. Talk with your clinician before changing medications, supplements or care.
How it’s worked out
The formula
Remnant-C = total cholesterol - HDL-C - LDL-C, with all three in the same unit (mg/dL or mmol/L). With a Friedewald LDL-C this equals triglycerides (mg/dL) / 5.
When the equation works
Outside these limits the calculator says so instead of giving a number.
- HDL has to be lower than total cholesterol.
- LDL can’t be higher than non-HDL cholesterol (total minus HDL).
A worked example
Example numbers, not anyone’s real results, run through the same code as the calculator above.
| Total Cholesterol | 200 mg/dL |
|---|---|
| HDL | 50 mg/dL |
| LDL-C | 118 mg/dL |
| How the LDL was measured | Measured directly |
| Remnant-C | 32 mg/dL |
What Remnant-C tells you
Remnant cholesterol is the cholesterol carried by triglyceride-rich particles after your body has partly broken them down. In a fasting sample these are mostly VLDL and IDL particles, and after a meal they also include chylomicron remnants. Labs rarely measure it directly. It is calculated as total cholesterol minus HDL cholesterol minus LDL cholesterol. If your LDL cholesterol was itself estimated with the Friedewald equation, the result is simply your triglycerides divided by 5 and adds nothing new.
Large studies link higher remnant cholesterol to more heart attacks and other heart disease, and genetic research suggests the link may be causal. Some research suggests it may point to risk that LDL cholesterol alone misses, although in one large analysis the link faded once apoB was also counted. There is no agreed target or lab range yet, so it is best read together with your triglycerides, LDL, non-HDL cholesterol and apoB.
Read the full page on Remnant-C, with what a high or low result can mean.
Sources
The equation
- Remnant cholesterol as a causal risk factor for ischemic heart disease, Journal of the American College of Cardiology (2013)
- Triglyceride-rich lipoproteins and their remnants: metabolic insights, role in atherosclerotic cardiovascular disease, and emerging therapeutic strategies - a consensus statement from the European Atherosclerosis Society, European Heart Journal (2021)
- Traditional and Emerging Lipid Markers for Cardiovascular Risk Assessment in Young vs Older Adults, JAMA Network Open (2026)
- A Narrative Review of Remnant Cholesterol as an Independent Atherogenic Lipoprotein in Type 2 Diabetes: Pathophysiology and Clinical Implications, Therapeutics and Clinical Risk Management (2026)
- Remnant cholesterol associates with hypertension beyond low-density lipoprotein cholesterol among the general US adult population, Frontiers in Endocrinology (2023)
- New Methods for Calculating LDL-Cholesterol and Related Biomarkers of Atherosclerotic Cardiovascular Disease Risk, Current Atherosclerosis Reports (2026)
1 more sources for the ranges and the explanation
- Cholesterol (PubChem CID 5997), PubChem, National Library of Medicine
AI-verified against cited sources. Awaiting expert review. Last reviewed 2026-10-03. The calculator is version 1.0.0 of our code for this equation, tested against published examples. How we build and check these pages.