How do you convert triglycerides from mg/dL to mmol/L?

Divide the mg/dL figure by 88.57. So 100 mg/dL is about 1.13 mmol/L, 150 mg/dL is about 1.69 mmol/L, and 200 mg/dL is about 2.26 mmol/L.

How do you convert triglycerides from mmol/L to mg/dL?

Multiply the mmol/L figure by 88.57. So 1 mmol/L is about 89 mg/dL, 1.7 mmol/L is about 151 mg/dL, and 2.3 mmol/L is about 204 mg/dL.

Why is the triglyceride factor different from cholesterol?

Triglycerides are heavier molecules than cholesterol, so the same concentration in mmol/L equals a larger figure in mg/dL. Triglycerides use 88.57 where cholesterol uses 38.67. Using the cholesterol factor on a triglyceride result is the most common mistake here, and it makes the number look far too low.

Which unit does the UK use for triglycerides?

UK labs report triglycerides in mmol/L, and so does most of Europe. The United States uses mg/dL. The same sample gives a number about 89 times larger in mg/dL, which is why a UK reading of 1.7 and a US reading of 151 are the same level.

Does this tell me if my triglycerides are high?

No. This converter only changes the unit; it is not a diagnosis. Whether a value is healthy depends on whether the sample was fasting and on your wider picture, which is for a qualified clinician to interpret.

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Triglyceride Unit Converter

UK labs report triglycerides in mmol/L; US sources use mg/dL. Divide mg/dL by 88.57 to get mmol/L, or multiply mmol/L by 88.57 to go the other way. Triglycerides use a different factor from cholesterol, so do not reuse that one.

Value in mmol/L

1 mmol/L = 88.57 mg/dL for triglycerides (a different factor from cholesterol).

Triglyceride conversion table

One mmol/L is 88.57 mg/dL. To go from mg/dL to mmol/L, divide by 88.57. To go the other way, multiply by the same number. So 150 mg/dL is 1.69 mmol/L, and 1.7 mmol/L is 151 mg/dL. The tables below cover the values a lipid panel usually prints.

mmol/L to mg/dL

mmol/L	mg/dL
0.5	44
0.8	71
1	89
1.2	106
1.5	133
1.7	151
2	177
2.3	204
2.5	221
3	266
3.5	310
4	354
5	443
6	531
10	886

mg/dL to mmol/L

mg/dL	mmol/L
50	0.56
75	0.85
100	1.13
125	1.41
150	1.69
175	1.98
200	2.26
250	2.82
300	3.39
350	3.95
400	4.52
500	5.65
750	8.47
1000	11.29

Values are rounded. The converter above takes any figure, decimals included. Whether a triglyceride reading is high depends on how long you fasted before the sample and on the rest of your lipid panel, so our guide to the triglycerides blood test sets the number in context, and the cholesterol blood test covers the markers it is read alongside. Cholesterol converts on a different factor, 38.67, which our cholesterol unit converter handles.

What 150 and 500 mg/dL come to in UK units

Two figures bring most people to this page. 150 mg/dL and 500 mg/dL. Neither is a random number. They are the two lines American lipid charts draw, so if you are converting one of them you already have your result and you want to know what it means over here.

Here is the reassuring part. 150 mg/dL works out at 1.69 mmol/L, and the UK fasting cut-off is 1.7. Those are the same number, near enough. Unlike vitamin D, where the two countries genuinely disagree, the triglyceride lines sit on top of each other.

The line	mmol/L	mg/dL	Who draws it
Normal, fasting sample	Below 1.7	Below 151	HEART UK
Normal, after eating	Below 2.0	Below 177	HEART UK
The US “normal” ceiling	1.69	150	US lipid charts
The US “very high” line	5.65	500	US lipid charts

The UK figures come from HEART UK, the national cholesterol charity. For a fasting sample it says plainly that “your triglyceride level should be below 1.7mmol/L”. For a sample taken after eating it sets the bar a little higher.

“We should aim for a non-fasting triglyceride level below 2.0mmol/L.”
— HEART UK, Triglycerides

That gap between the two is why the lab asks you to fast. A meal lifts triglycerides for hours afterwards, so the same person can read 1.5 in the morning and well over 2 after lunch. Neither figure is wrong. They are answers to different questions.

The top of the scale is worth knowing about. 500 mg/dL is 5.65 mmol/L, and HEART UK notes that “very high triglyceride levels can cause serious medical conditions such as pancreatitis”. A figure up there deserves a conversation with your GP rather than a conversion.

Converting the unit does not tell you whether your level is raised. It only changes the unit. Whether a reading matters depends on how long you fasted, on the rest of your lipid panel and on your wider picture, which is for a qualified clinician to read. Our guide to the triglycerides blood test sets the number in context, the cholesterol blood test covers the markers read beside it, and the heart health hub gathers the rest.

How this is worked out

Uses the standard conversion factor for triglycerides: 1 mmol/L = 88.57 mg/dL (molar mass 885.4 g/mol), so 1 mg/dL = 0.0113 mmol/L. This is a larger molecule than cholesterol, so the factor differs.

This tool is for general wellbeing information and is not a diagnosis or medical advice. It places the numbers you enter in context; it cannot tell you whether you have a condition. If a result concerns you, or you have symptoms, speak to your GP.

Questions

How do you convert triglycerides from mg/dL to mmol/L?: Divide the mg/dL figure by 88.57. So 100 mg/dL is about 1.13 mmol/L, 150 mg/dL is about 1.69 mmol/L, and 200 mg/dL is about 2.26 mmol/L.
How do you convert triglycerides from mmol/L to mg/dL?: Multiply the mmol/L figure by 88.57. So 1 mmol/L is about 89 mg/dL, 1.7 mmol/L is about 151 mg/dL, and 2.3 mmol/L is about 204 mg/dL.
Why is the triglyceride factor different from cholesterol?: Triglycerides are heavier molecules than cholesterol, so the same concentration in mmol/L equals a larger figure in mg/dL. Triglycerides use 88.57 where cholesterol uses 38.67. Using the cholesterol factor on a triglyceride result is the most common mistake here, and it makes the number look far too low.
Which unit does the UK use for triglycerides?: UK labs report triglycerides in mmol/L, and so does most of Europe. The United States uses mg/dL. The same sample gives a number about 89 times larger in mg/dL, which is why a UK reading of 1.7 and a US reading of 151 are the same level.
Does this tell me if my triglycerides are high?: No. This converter only changes the unit; it is not a diagnosis. Whether a value is healthy depends on whether the sample was fasting and on your wider picture, which is for a qualified clinician to interpret.

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Triglyceride conversion table

mmol/L to mg/dL

mmol/L	mg/dL
0.5	44
0.8	71
1	89
1.2	106
1.5	133
1.7	151
2	177
2.3	204
2.5	221
3	266
3.5	310
4	354
5	443
6	531
10	886

mg/dL to mmol/L

mg/dL	mmol/L
50	0.56
75	0.85
100	1.13
125	1.41
150	1.69
175	1.98
200	2.26
250	2.82
300	3.39
350	3.95
400	4.52
500	5.65
750	8.47
1000	11.29

What 150 and 500 mg/dL come to in UK units

The line	mmol/L	mg/dL	Who draws it
Normal, fasting sample	Below 1.7	Below 151	HEART UK
Normal, after eating	Below 2.0	Below 177	HEART UK
The US “normal” ceiling	1.69	150	US lipid charts
The US “very high” line	5.65	500	US lipid charts

“We should aim for a non-fasting triglyceride level below 2.0mmol/L.”

— HEART UK, Triglycerides

<iframe src="https://helvy.co.uk/tools/triglyceride-unit-converter/embed" width="100%" height="420" style="border:1px solid #E7DFCC;border-radius:16px;max-width:560px" title="Triglyceride Unit Converter by Helvy" loading="lazy"></iframe> <p style="font:12px sans-serif"><a href="https://helvy.co.uk/tools/triglyceride-unit-converter">Triglyceride Unit Converter</a> by Helvy</p>

Triglyceride Unit Converter

Triglyceride conversion table

mmol/L to mg/dL

mg/dL to mmol/L

What 150 and 500 mg/dL come to in UK units

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Triglyceride Unit Converter

Triglyceride conversion table

mmol/L to mg/dL

mg/dL to mmol/L

What 150 and 500 mg/dL come to in UK units

Related panels

Advanced Heart Health

A clearer picture of your health starts with a single drop.

mmol/L	mg/dL
0.5	44
0.8	71
1	89
1.2	106
1.5	133
1.7	151
2	177
2.3	204
2.5	221
3	266
3.5	310
4	354
5	443
6	531
10	886

mmol/L	mg/dL
0.5	44
0.8	71
1	89
1.2	106
1.5	133
1.7	151
2	177
2.3	204
2.5	221
3	266
3.5	310
4	354
5	443
6	531
10	886

mmol/L	mg/dL
0.5	44
0.8	71
1	89
1.2	106
1.5	133
1.7	151
2	177
2.3	204
2.5	221
3	266
3.5	310
4	354
5	443
6	531
10	886

mmol/L	mg/dL
0.5	44
0.8	71
1	89
1.2	106
1.5	133
1.7	151
2	177
2.3	204
2.5	221
3	266
3.5	310
4	354
5	443
6	531
10	886

mmol/L	mg/dL
0.5	44
0.8	71
1	89
1.2	106
1.5	133
1.7	151
2	177
2.3	204
2.5	221
3	266
3.5	310
4	354
5	443
6	531
10	886

mmol/L	mg/dL
0.5	44
0.8	71
1	89
1.2	106
1.5	133
1.7	151
2	177
2.3	204
2.5	221
3	266
3.5	310
4	354
5	443
6	531
10	886