mmol/L to mg/dL Cholesterol Converter — Read Foreign Lab Results in US Units

Convert mmol/L to mg/dL as you type.

US Cholesterol Converter: Switch Lab Results Between mg/dL and mmol/L

1 mmol/L = 38.67 mg/dL

Reference for one unit; displayed values may be rounded.

Enter Cholesterol in mmol/L

mmol/L

Millimoles per Liter

Use a dot or comma for decimals, without thousands separators.

Result in mg/dL

mg/dL

Milligrams per Deciliter

Decimal places

Display rounding does not improve the accuracy of your original measurement. Very large or very small results use scientific notation.

Method and source

This tool changes units only. It does not interpret test results or provide a diagnosis.

mmol/L to mg/dL Conversion Formula

To convert cholesterol from millimoles per liter to milligrams per deciliter, multiply the mmol/L value by 38.67. The factor comes from the molar mass of cholesterol (about 386.7 grams per mol) and the tenfold difference between a liter and a deciliter.

1 mmol/L = 38.67 mg/dL

Millimoles per Liter and Milligrams per Deciliter Explained

Millimoles per Liter (mmol/L)

Millimoles per liter is the SI unit for reporting cholesterol concentration in blood plasma. Instead of weighing the cholesterol, it counts molecules: one millimole is about 602 sextillion cholesterol particles, and mmol/L states how many of those units are dissolved in each liter of blood. Typical lipid panel values fall between 2 and 8 mmol/L, so the scale is compact and a single decimal place carries real clinical meaning.

Where it is used: Used for lipid panels in Canada, the United Kingdom, Australia, New Zealand, and most of continental Europe — everywhere your report won't match a US lab slip without converting.

Origin: Adopted as clinical chemistry laboratories metricized during the 1970s and 1980s, when lab medicine moved to SI units for consistency across the medical sciences.

Milligrams per Deciliter (mg/dL)

Milligrams per deciliter expresses cholesterol as mass: the number of milligrams of cholesterol carried in one tenth of a liter (100 milliliters) of blood. Because cholesterol is weighed rather than counted, the numbers run large — a desirable total cholesterol sits under 200 mg/dL, an optimal LDL under 100 mg/dL, and a very high reading can exceed 300 mg/dL.

Where it is used: The standard unit on lipid panels at US labs and hospitals — from Labcorp and Quest draw stations to the Mayo Clinic — and in the cardiology research published by American journals.

Origin: A survivor of early twentieth-century American clinical chemistry, which standardized results as measured weight per 100 milliliters of serum and never switched to SI units.

mmol/L to mg/dL Cholesterol Conversion Table

Select a value to use it in the calculator.

Millimoles per Liter (mmol/L)	Milligrams per Deciliter (mg/dL)
	38.67 mg/dL
	58.005 mg/dL
	77.34 mg/dL
	96.675 mg/dL
	116.01 mg/dL
	135.345 mg/dL
	154.68 mg/dL
	174.015 mg/dL
	193.35 mg/dL
	201.084 mg/dL
	212.685 mg/dL
	232.02 mg/dL
	239.754 mg/dL
	251.355 mg/dL
	270.69 mg/dL
	309.36 mg/dL
	348.03 mg/dL
	386.7 mg/dL

Milligrams per Deciliter to Millimoles per Liter Conversion Table

Milligrams per Deciliter (mg/dL)	Millimoles per Liter (mmol/L)
40 mg/dL	1.0343935868 mmol/L
50 mg/dL	1.2929919834 mmol/L
60 mg/dL	1.5515903801 mmol/L
80 mg/dL	2.0687871735 mmol/L
100 mg/dL	2.5859839669 mmol/L
120 mg/dL	3.1031807603 mmol/L
130 mg/dL	3.361779157 mmol/L
150 mg/dL	3.8789759503 mmol/L
160 mg/dL	4.137574347 mmol/L
180 mg/dL	4.6547711404 mmol/L
200 mg/dL	5.1719679338 mmol/L
220 mg/dL	5.6891647272 mmol/L
240 mg/dL	6.2063615206 mmol/L
260 mg/dL	6.7235583139 mmol/L

Millimoles per Liter to Milligrams per Deciliter in Everyday Objects

Common real-world examples that make Millimoles per Liter and Milligrams per Deciliter easy to picture at a glance.

	Millimoles per Liter (mmol/L)	Milligrams per Deciliter (mg/dL)
Canadian desirable total ceiling	5.2 mmol/L	201.084 mg/dL
High total cholesterol threshold	6.2 mmol/L	239.754 mg/dL
Optimal LDL target in SI units	3 mmol/L	116.01 mg/dL
Protective HDL floor	1 mmol/L	38.67 mg/dL
Average adult total reading	5 mmol/L	193.35 mg/dL
Very high LDL level	4.9 mmol/L	189.483 mg/dL

Millimoles per Liter Reference Ranges

	Millimoles per Liter (mmol/L)	Milligrams per Deciliter (mg/dL)
Desirable total cholesterol	2–5.2 mmol/L	77.34–201.084 mg/dL
High total cholesterol	5.2–6.2 mmol/L	201.084–239.754 mg/dL
Optimal LDL cholesterol	1–3 mmol/L	38.67–116.01 mg/dL
Protective HDL cholesterol	1–2.5 mmol/L	38.67–96.675 mg/dL

Medical disclaimer: the reference ranges on this page are general educational values for healthy adults and may vary by laboratory method, age, sex, and health status. They are not a diagnosis and do not replace professional medical advice. Always ask a qualified healthcare provider to interpret your test results.

When You Need Millimoles per Liter to Milligrams per Deciliter Conversions

Reading a Canadian Lab Report in US Terms

You had bloodwork drawn in Toronto during a family visit and the total cholesterol reads 5.2 mmol/L — that's 201.08 mg/dL, right at the line where a lab back home in Seattle prints an under-200 flag. Knowing both units explains why the two reports treat the same blood differently.

Plugging Into American Heart Risk Calculators

US risk tools like the ASCVD estimator ask for total and HDL cholesterol in mg/dL. Your European report shows 6.2 mmol/L total (239.75 mg/dL) and 1.3 mmol/L HDL (50.27 mg/dL) — convert first and the ten-year risk estimate stays honest.

Comparing LDL With US Heart-Health Content

American Heart Association articles quote an optimal LDL below 100 mg/dL. Your overseas report shows 3.0 mmol/L, which converts to 116.01 mg/dL — just above that target, and a useful talking point at your next checkup.

Tracking Statin Follow-Up After a Move

Just relocated back from London and your LDL fell from 3.4 to 2.6 mmol/L during treatment? That's a move from 131.48 to 100.54 mg/dL — the same 23.5 percent improvement, expressed both ways for whichever clinic reads your chart.

Related Cholesterol Conversions

Cholesterol mg/dL to mmol/L Converter for US Lab Results

Milligrams per Deciliter → Millimoles per Liter

How to Use

1

Enter Your Value in mmol/L

Type the number straight off your lipid report — for example, 5.2 for a total cholesterol of 5.2 mmol/L from a lab in Toronto or London
2

Read the mg/dL Equivalent

The result appears instantly: 5.2 mmol/L = 201.08 mg/dL, ready to compare against the US reference ranges your doctor stateside uses
3

Copy or Swap

Copy the converted value, or hit Swap to turn a mg/dL figure from an American Heart Association article back into mmol/L for your overseas records
4

Verify With the Table

Cross-check nearby values such as 3.0 mmol/L = 116.01 mg/dL or 6.2 mmol/L = 239.75 mg/dL before your next appointment

Why Use Be Converter?

Instant Lipid Report Translation

Type a value like 5.2 and watch 201.08 mg/dL appear as you type — no submit button, no waiting, just the US-scale reading of your overseas lab slip in real time

Guideline-Grade Precision

Uses the exact cholesterol factor of 38.67 mg/dL per mmol/L, so 6.2 mmol/L lands precisely on 239.75 mg/dL — the same high-risk cut-off quoted in American Heart Association guidelines

Reference Table for Common Results

Scan 1.0 to 10.0 mmol/L with mg/dL equivalents, including clinical anchors at 5.2 (201.08) and 6.2 (239.75) for total cholesterol

Swap for the Return Trip

One click reverses the conversion when a US heart-health article quotes mg/dL and your clinic in Toronto, Vancouver, or Berlin reports mmol/L

Free & Unlimited

No registration, no paywall. Convert every line of a full lipid panel — total, LDL, HDL — as often as your annual physical and follow-up visits demand

Health Data Stays on Your Device

All calculations run locally in your browser. Your cholesterol numbers are never uploaded, logged, or shared — not with us, not with your insurance company, not with anyone

Frequently Asked Questions

How many mg/dL is 1 mmol/L of cholesterol?

One mmol/L equals 38.67 mg/dL, and the same factor applies to every cholesterol fraction — total, LDL, and HDL alike. It reflects the molar mass of cholesterol (about 386.7 grams per mol) divided by the tenfold difference between a liter and a deciliter, so the math is identical whether your report comes from Dallas or Dublin.

How do I convert my cholesterol from mmol/L to mg/dL?

Multiply the mmol/L value by 38.67. For example, a total cholesterol of 6.2 mmol/L on a London lab slip works out to 6.2 × 38.67 = 239.75 mg/dL. For a quick mental estimate, multiply by 40 and shave off about 3.5 percent.

What is 5.2 mmol/L in mg/dL?

5.2 mmol/L equals 201.08 mg/dL. This is a pivotal number: labs in Canada and Europe treat 5.2 mmol/L as the top of the desirable range, while labs across the US flag 200 mg/dL — essentially the same threshold written in two different unit systems.

Why does Canada use mmol/L but the US use mg/dL for cholesterol?

Canadian and European laboratory medicine adopted SI units in the 1980s, so cholesterol is reported as a particle concentration in mmol/L. American labs kept the older mass-per-volume convention of mg/dL. One blood sample therefore produces two very different-looking numbers — a report from Toronto says 5.2 while one from Chicago says 201, and both describe the same cholesterol level.

Is the 38.67 factor the same for HDL and LDL cholesterol?

Yes. Total cholesterol, LDL, and HDL are all the same molecule, so a single factor of 38.67 converts any of them. Triglycerides are the exception: they have a different molar mass and use a factor of about 88.57, so never apply 38.67 to triglyceride values.

Is 5.2 mmol/L cholesterol high?

5.2 mmol/L (201.08 mg/dL) sits exactly at the upper edge of the desirable range on the US scale. Total cholesterol is generally considered desirable below 5.2 mmol/L and high above 6.2 mmol/L (239.75 mg/dL), so at exactly 5.2 your doctor will focus on LDL, HDL, and overall cardiovascular risk rather than the total alone.

Why is LDL in mmol in Canada?

Canadian labs standardized on SI units decades ago, so every cholesterol fraction, LDL included, is reported in mmol/L. To line up with the US optimal LDL target of under 100 mg/dL endorsed by the American Heart Association, divide by 38.67: 100 mg/dL is about 2.59 mmol/L, so a Canadian LDL below 2.6 mmol/L matches the American cut-off.

What is 3.0 mmol/L LDL in mg/dL?

An LDL of 3.0 mmol/L equals 116.01 mg/dL. On the US scale that falls in the near-optimal band — above the optimal mark of 100 mg/dL (2.586 mmol/L) but below the borderline-high level of 160 mg/dL (4.138 mmol/L) that your American doctor tracks.

About mmol/L to mg/dL Cholesterol Converter

Our free online mmol/L to mg/dL cholesterol converter turns SI-unit lipid results into the mass-based figures used in American medicine. Got bloodwork from a lab in Toronto, London, Sydney, or Berlin? Enter the numbers here and see the mg/dL values your doctor stateside expects — ready for the ASCVD risk estimator, your patient portal, or a follow-up with your cardiologist. Total cholesterol, LDL, and HDL all share the same factor of 38.67 mg/dL per mmol/L, so one quick conversion covers your entire lipid panel, and results appear as you type with no sign-up required.

Expert Tips for mmol/L to mg/dL Conversion

The exact factor 38.67 comes from the molar mass of cholesterol, roughly 386.7 grams per mol: one millimole dissolved in a deciliter of blood weighs 38.67 mg, so mg/dL = mmol/L × 38.67.

Memorize four anchors and you can sanity-check any report: 5.2 mmol/L ≈ 201 mg/dL (top of desirable), 6.2 mmol/L ≈ 240 mg/dL (high), 2.6 mmol/L ≈ 100 mg/dL (optimal LDL), and 1.0 mmol/L ≈ 39 mg/dL (protective HDL floor).

Scale around the boundary anchor: 5.172 mmol/L is exactly 200 mg/dL, so 2.586 mmol/L is 100 mg/dL and 10.34 mmol/L is 400 mg/dL without any further math.

Never convert triglycerides with 38.57 or 38.67-style cholesterol factors — triglycerides use about 88.57 mg/dL per mmol/L. Only total cholesterol, LDL, and HDL share the 38.67 factor.

When tracking treatment over time, keep two decimals: an LDL fall from 3.4 to 2.6 mmol/L is 131.48 down to 100.54 mg/dL — a 23.5 percent reduction your US cardiologist will measure precisely at follow-up visits.

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