Be Converter

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

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

US Cholesterol Converter: Switch Lab Results Between mg/dL and mmol/L
1 mg/dL ≈ 0.0258598397 mmol/L

Reference for one unit; displayed values may be rounded.

mg/dL

Milligrams per Deciliter

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

mmol/L

Millimoles per Liter

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.

mg/dL to mmol/L Conversion Formula

To change cholesterol from milligrams per deciliter to millimoles per liter, divide the mg/dL value by 38.67 — or multiply by 0.02586, which gets you the same answer. The divisor comes from cholesterol's molar mass of roughly 386.7 grams per mol.

1 mg/dL ≈ 0.0258598397 mmol/L

Milligrams per Deciliter and Millimoles per Liter Explained

Milligrams per Deciliter (mg/dL)

Milligrams per deciliter is the mass-based unit you see on US lab reports: it counts the milligrams of cholesterol carried in every 100 milliliters of blood. Because cholesterol gets weighed rather than counted, the numbers run big — desirable total cholesterol stays under 200 mg/dL, readings past 240 mg/dL are considered high, and LDL targets like 100 mg/dL show up throughout American guidelines.

Where it is used: Standard on lipid panels from US labs such as LabCorp and Quest Diagnostics, and throughout American cardiology literature.

Origin: Descended from early twentieth-century American clinical chemistry, which standardized results as measured weight per volume of serum and stuck with the convention after the rest of the world switched to SI units.

Millimoles per Liter (mmol/L)

Millimoles per liter is the SI unit for blood cholesterol, counting how many millimoles are dissolved in a liter of plasma. One millimole is roughly 602 sextillion molecules, so the unit measures particle count instead of mass. The numbers come out compact — most lipid panels land between 2 and 8 mmol/L — which is why a Canadian or European report looks so much smaller than the US equivalent.

Where it is used: Standard on lipid panels in Canada, the United Kingdom, Australia, New Zealand, and continental Europe.

Origin: Came in with the SI-unit modernization of clinical laboratories during the 1970s and 1980s, replacing mass-based reporting nearly everywhere except the United States.

mg/dL to mmol/L Cholesterol Conversion Table

Select a value to use it in the calculator.

Milligrams per Deciliter (mg/dL) Millimoles per Liter (mmol/L)
1.0343935868 mmol/L
1.2929919834 mmol/L
1.5515903801 mmol/L
1.8101887768 mmol/L
2.0687871735 mmol/L
2.5859839669 mmol/L
3.1031807603 mmol/L
3.361779157 mmol/L
3.6203775537 mmol/L
3.8789759503 mmol/L
4.137574347 mmol/L
4.3961727437 mmol/L
4.6547711404 mmol/L
4.9133695371 mmol/L
5.1719679338 mmol/L
5.6891647272 mmol/L
6.2063615206 mmol/L
6.7235583139 mmol/L

Millimoles per Liter to Milligrams per Deciliter Conversion Table

Millimoles per Liter (mmol/L) Milligrams per Deciliter (mg/dL)
1 mmol/L 38.67 mg/dL
1.5 mmol/L 58.005 mg/dL
2 mmol/L 77.34 mg/dL
2.6 mmol/L 100.542 mg/dL
3 mmol/L 116.01 mg/dL
3.4 mmol/L 131.478 mg/dL
4 mmol/L 154.68 mg/dL
4.5 mmol/L 174.015 mg/dL
5 mmol/L 193.35 mg/dL
5.2 mmol/L 201.084 mg/dL
6 mmol/L 232.02 mg/dL
6.2 mmol/L 239.754 mg/dL
7 mmol/L 270.69 mg/dL
8 mmol/L 309.36 mg/dL

Milligrams per Deciliter to Millimoles per Liter in Everyday Objects

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

  Milligrams per Deciliter (mg/dL) Millimoles per Liter (mmol/L)
Desirable total on US lab reports 200 mg/dL 5.1719679338 mmol/L
High total cholesterol threshold 240 mg/dL 6.2063615206 mmol/L
Optimal LDL target in US guidelines 100 mg/dL 2.5859839669 mmol/L
Protective HDL floor for men 40 mg/dL 1.0343935868 mmol/L
Typical American adult total reading 190 mg/dL 4.9133695371 mmol/L
Borderline-high LDL level 160 mg/dL 4.137574347 mmol/L

Milligrams per Deciliter Reference Ranges

  Milligrams per Deciliter (mg/dL) Millimoles per Liter (mmol/L)
Total cholesterol — desirable 80–200 mg/dL 2.0687871735–5.1719679338 mmol/L
Total cholesterol — high 200–240 mg/dL 5.1719679338–6.2063615206 mmol/L
LDL cholesterol — optimal 50–100 mg/dL 1.2929919834–2.5859839669 mmol/L
HDL cholesterol — protective 40–100 mg/dL 1.0343935868–2.5859839669 mmol/L

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 Milligrams per Deciliter to Millimoles per Liter Conversions

Sending Your US Report to a Doctor in Canada

Before an appointment across the border in Toronto or Vancouver, translate your American panel: a total of 190 mg/dL becomes 4.913 mmol/L and an HDL of 60 mg/dL becomes 1.552 mmol/L, so your file matches the local reference ranges.

Comparing Against UK and Australian Heart Targets

UK-style advice aims for total cholesterol under 5 mmol/L. Your US result of 193 mg/dL converts to 4.99 mmol/L — just inside the goal — while 200 mg/dL (5.172 mmol/L) just misses it.

Checking Clinical Trial Eligibility

International cardiology trials — many run through US medical centers in Boston, Houston, and Rochester — set LDL entry thresholds like 4.9 mmol/L or 3.4 mmol/L. Converting a US LDL of 190 mg/dL (4.913 mmol/L) or 130 mg/dL (3.362 mmol/L) shows right away where you stand against the criteria.

Re-Baselining After a Move Abroad

If your baseline at your doctor in San Francisco was 220 mg/dL (5.689 mmol/L) and your new lab overseas reports the follow-up as 5.2 mmol/L (201.08 mg/dL), you can see at a glance you've moved from above the line into the desirable band.

Related Cholesterol Conversions

mmol/L to mg/dL Cholesterol Converter — Read Foreign Lab Results in US Units
Millimoles per Liter → Milligrams per Deciliter

Closely related tools

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

Turn Canadian, UK, and European cholesterol readings into the mg/dL numbers your American doctor expects. Instant results, exact formula, zero sign-up.

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

Instantly translate American lab reports (mg/dL) and international results (mmol/L) for total cholesterol, HDL, LDL, and triglycerides.

How to Use

  1. 1

    Enter Your mg/dL Value

    Type the number straight off your US lab report — for example, 130 for an LDL of 130 mg/dL from your annual physical

  2. 2

    See the mmol/L Result

    The answer appears instantly: 130 mg/dL = 3.362 mmol/L, the unit doctors in Canada, the UK, and Europe will recognize

  3. 3

    Copy or Reverse

    Copy the mmol/L value for your records, or hit Swap to turn an mmol/L figure from an overseas report back into the mg/dL number you know

  4. 4

    Check the Table

    Confirm neighboring anchors like 100 mg/dL = 2.586 mmol/L or 190 mg/dL = 4.913 mmol/L before you file anything away

Why Use Be Converter?

Convert Your Whole Panel in Seconds

Type in 200 and get 5.172 mmol/L right away — run the total, LDL, and HDL lines from your LabCorp or Quest Diagnostics printout back to back

Exact Two-Way Factor

Divides by 38.67 with no rounding shortcuts, so 240 mg/dL lands on 6.206 mmol/L — right on the high-risk cut-off quoted on Canadian and European reports

Lipid Anchor Table

Every key value from 40 to 260 mg/dL mapped to mmol/L, from the protective HDL floor (40 = 1.034) up to high totals (240 = 6.206)

Flip Back to US Units

One click reverses direction whenever a clinic in Toronto or London quotes mmol/L and you want the mg/dL number you're used to seeing at home

Free & Unlimited

No account, no limits, no fees. Convert every cholesterol value on your report — and everyone in the family's — as many times as you like

Private by Design

All the math runs right in your browser. Your sensitive lipid results never touch a server

Frequently Asked Questions

How many mmol/L is 1 mg/dL of cholesterol?
One mg/dL equals 0.02586 mmol/L. That multiplier is too small to work with in your head, so flip it around and divide by 38.67 instead — it's the exact same factor viewed from the other direction.
How do I convert my cholesterol from mg/dL to mmol/L?
Divide the mg/dL value by 38.67. A total cholesterol of 220 mg/dL works out to 220 ÷ 38.67 = 5.689 mmol/L. For a quick ballpark, divide by 40, then add about 3.5 percent.
What is 200 mg/dL in mmol/L?
200 mg/dL equals 5.172 mmol/L. It's the classic boundary number: US labs treat 200 as the top of the desirable range, and international guidelines round that same line to about 5.2 mmol/L.
Which countries use mg/dL for cholesterol?
The United States is the main country still reporting cholesterol in mg/dL — your results from LabCorp, Quest, or any US hospital system will use it. Canada, the UK, Australia, New Zealand, and most of Europe report in mmol/L instead. Dividing any US value by 38.67 makes the two systems directly comparable.
Does the 38.67 factor work for triglycerides too?
No. Triglycerides have a different molar mass and convert at roughly 88.57 mg/dL per mmol/L. Only total cholesterol, LDL, and HDL — the same molecule in different lipoprotein packages — share the 38.67 divisor.
Is 200 mg/dL cholesterol high?
200 mg/dL (5.172 mmol/L) sits exactly on the dividing line. At or below it, total cholesterol counts as desirable; at 240 mg/dL (6.206 mmol/L) and up, it's classed as high. Right at 200, your doctor will weigh LDL, HDL, blood pressure, and your overall risk profile before calling it.
Why do Canadian and UK labs report cholesterol in mmol/L?
Their laboratory systems moved to SI units in the 1980s, reporting cholesterol as a particle concentration rather than a weight. The same blood sample that reads 150 mg/dL at a US lab prints as 3.879 mmol/L in Toronto or London — just divide any American result by 38.67 to match it.
What is 100 mg/dL in mmol/L?
100 mg/dL equals 2.586 mmol/L. That's the optimal LDL target in US guidelines, which is why international guidance phrases the same goal as keeping LDL below roughly 2.6 mmol/L.

About the mg/dL to mmol/L Cholesterol Converter

This free online converter takes the mg/dL cholesterol numbers on your US lab report and translates them into the mmol/L units used across Canada, the UK, Australia, and continental Europe. Maybe you're relocating from Chicago to Toronto and need your records to match the new clinic's system, sharing results with a doctor in London, comparing your numbers against European heart-health studies, or qualifying for an international clinical trial that lists thresholds in mmol/L — the tool gives you instant, exact answers. Total, LDL, and HDL all divide by the same factor of 38.67, so one conversion handles your entire panel.

Expert Tips for mg/dL to mmol/L Conversion

1

mg/dL ÷ 38.67 = mmol/L, exactly. Multiplying by 0.02586 gets you the same place, since 0.02586 is simply 1 ÷ 38.67 rounded.

2

Four anchors cover most conversations: 200 mg/dL = 5.172 mmol/L (the desirable ceiling), 240 = 6.206 (high), 100 = 2.586 (optimal LDL), and 40 = 1.034 (the protective HDL floor).

3

Need a fast mental estimate? Divide by 40, then add 3.5 percent: 220 mg/dL becomes 5.5, then about 5.69 mmol/L — within 0.01 of the exact 5.689.

4

Use the 38.67 factor for cholesterol only. Triglycerides on the same printout convert with roughly 88.57 instead, so a US-to-SI triglyceride conversion needs its own divisor.

5

When comparing your HDL against international reference ranges, remember the protective floor is usually quoted as 40 mg/dL (1.034 mmol/L) for men and 50 mg/dL (1.293 mmol/L) for women.

Professional-grade conversion tools for length, weight, area, volume, temperature, pressure, speed, time, and energy measurements