Blood Sugar/Glucose Conversion Chart mmol/L to mg/dl
Author: Ian C. Langtree - Writer/Editor for Disabled World (DW)
Published: 3 Jul 2018 - Updated: 4 Sep 2026
Publication Type: Charts, Graphs, Tables
Table of Contents:
Synopsis - Definition - Overview - FAQs - Insights, Updates - Related Content
Synopsis
This information is of use to individuals with diabetes, healthcare professionals, and researchers who need to interpret blood sugar levels across different measurement systems. The chart is particularly important because different countries use different units of measurement for blood glucose, with mmol/L being the international standard and mg/dL commonly used in the United States and some other countries. By offering a wide range of conversions and providing simple formulas for calculation, this resource helps ensure accurate interpretation of blood glucose readings, which is essential for proper diabetes management, diagnosis, and research across global healthcare systems.
At a Glance
- 1 - The factor of 18 comes from the molecular weight of glucose. It links glucose mass in milligrams to its amount in millimoles.
- 2 - The tables span 0.1 mmol/L (1.80 mg/dL) up to 900 mg/dL (50.000 mmol/L). Values are truncated rather than rounded, so listed figures are approximate.
- 3 - Diabetes targets are 4 to 7 mmol/L before meals for type 1 and type 2. After eating, the aim is under 9 mmol/L for type 1 and under 8.5 mmol/L for type 2.
- 4 - Home meters often switch between mmol/L and mg/dL, though some are locked to the local unit. Fingertip capillary readings can also differ from venous lab plasma results.
Topic Definition
- Blood Sugar Conversion
Blood sugar conversion is the straightforward arithmetic of restating a glucose result in the unit used by another measurement system, moving between millimoles per liter (mmol/L), the molar concentration standard used through most of the world, and milligrams per deciliter (mg/dL), the mass concentration unit familiar in the United States, Germany and a handful of other countries. The same glucose level carries two very different looking numbers depending on the unit, so a fasting result of 5.0 mmol/L and one of 90 mg/dL describe an identical amount of sugar in the blood. Converting is a matter of multiplying a mmol/L figure by 18 to reach mg/dL, or dividing a mg/dL figure by 18 to go back the other way, a step that matters whenever someone compares a lab report, a meter reading, a clinical guideline or a research paper that was written for a different country. For people living with diabetes, their caregivers and the clinicians who treat them, having both units at hand removes a common source of confusion and keeps day to day monitoring, target setting and diagnosis consistent.
Overview
The mmol/L to mg/dl conversion converts the American blood sugar measurement system of milligrams per deciliter (mg/dl) blood glucose values converted to the international standard of millimole per liter (mmol/L). The charts below list a broad range of easy to read mmol/L to mg/dl, as well as vice versa mg/dl to mmol/L, measurement comparisons that range in numbers from 0.1 mmol/L (1.80 mg/dL), and scale up to 900.0 mg/dL (50.000 mmol/L).
What is Blood Sugar Level?
The blood sugar level (blood sugar concentration or blood glucose level) is defined as the measurement of the amount of glucose present in the blood. Glucose is an essential source of energy, our bodies make it, but glucose mostly comes from the food we eat.
Blood Glucose Measurement Methods
The international standard way of measuring blood glucose levels is in terms of a molar concentration, measured in mmol/L (millimoles per litre or millimolar, abbreviated mM).
In the U.S., Germany and some other countries blood sugar level concentration is measured in mg/dL (milligrams per decilitre).
Conversion Formula for Converting mmol/L to mg/dl:
- Multiply mmol/L by the number 18.
Conversion Formula for Converting mg/dl to mmol/L:
- Divide mg/dl by the number 18.
Jump To:
mmol/L to mg/dl Blood Glucose Conversion Table*
- 0.1 mmol/L = 1.80 mg/dL
- 0.2 mmol/L = 3.60 mg/dL
- 0.3 mmol/L = 5.41 mg/dL
- 0.4 mmol/L = 7.21 mg/dL
- 0.5 mmol/L = 9.01 mg/dL
- 0.6 mmol/L = 10.81 mg/dL
- 0.7 mmol/L = 12.61 mg/dL
- 0.8 mmol/L = 14.41 mg/dL
- 0.9 mmol/L = 16.22 mg/dL
- 1.0 mmol/L = 18.02 mg/dL
- 1.1 mmol/L = 19.82 mg/dL
- 1.2 mmol/L = 21.62 mg/dL
- 1.3 mmol/L = 23.42 mg/dL
- 1.4 mmol/L = 25.23 mg/dL
- 1.5 mmol/L = 27.03 mg/dL
- 1.6 mmol/L = 28.83 mg/dL
- 1.7 mmol/L = 30.63 mg/dL
- 1.8 mmol/L = 32.43 mg/dL
- 1.9 mmol/L = 34.23 mg/dL
- 2.0 mmol/L = 36.04 mg/dL
- 2.1 mmol/L = 37.84 mg/dL
- 2.2 mmol/L = 39.64 mg/dL
- 2.3 mmol/L = 41.44 mg/dL
- 2.4 mmol/L = 43.24 mg/dL
- 2.5 mmol/L = 45.05 mg/dL
- 2.6 mmol/L = 46.85 mg/dL
- 2.7 mmol/L = 48.65 mg/dL
- 2.8 mmol/L = 50.45 mg/dL
- 2.9 mmol/L = 52.25 mg/dL
- 3.0 mmol/L = 54.05 mg/dL
- 3.1 mmol/L = 55.86 mg/dL
- 3.2 mmol/L = 57.66 mg/dL
- 3.3 mmol/L = 59.46 mg/dL
- 3.4 mmol/L = 61.26 mg/dL
- 3.5 mmol/L = 63.06 mg/dL
- 3.6 mmol/L = 64.86 mg/dL
- 3.7 mmol/L = 66.67 mg/dL
- 3.8 mmol/L = 68.47 mg/dL
- 3.9 mmol/L = 70.27 mg/dL
- 4.0 mmol/L = 72.07 mg/dL
- 4.1 mmol/L = 73.87 mg/dL
- 4.2 mmol/L = 75.68 mg/dL
- 4.3 mmol/L = 77.48 mg/dL
- 4.4 mmol/L = 79.28 mg/dL
- 4.5 mmol/L = 81.08 mg/dL
- 4.6 mmol/L = 82.88 mg/dL
- 4.7 mmol/L = 84.68 mg/dL
- 4.8 mmol/L = 86.49 mg/dL
- 4.9 mmol/L = 88.29 mg/dL
- 5.0 mmol/L = 90.09 mg/dL
- 5.2 mmol/L = 93.69 mg/dL
- 5.4 mmol/L = 97.30 mg/dL
- 5.5 mmol/L = 99.10 mg/dL
- 5.6 mmol/L = 100.90 mg/dL
- 5.8 mmol/L = 104.50 mg/dL
- 6.0 mmol/L = 108.11 mg/dL
- 6.2 mmol/L = 111.71 mg/dL
- 6.4 mmol/L = 115.32 mg/dL
- 6.5 mmol/L = 117.12 mg/dL
- 6.6 mmol/L = 118.92 mg/dL
- 6.8 mmol/L = 122.52 mg/dL
- 7.0 mmol/L = 126.13 mg/dL
- 7.2 mmol/L = 129.73 mg/dL
- 7.4 mmol/L = 133.33 mg/dL
- 7.5 mmol/L = 135.14 mg/dL
- 7.6 mmol/L = 136.94 mg/dL
- 7.8 mmol/L = 140.54 mg/dL
- 8.0 mmol/L = 144.14 mg/dL
- 8.2 mmol/L = 147.75 mg/dL
- 8.4 mmol/L = 151.35 mg/dL
- 8.5 mmol/L = 153.15 mg/dL
- 8.6 mmol/L = 154.95 mg/dL
- 8.8 mmol/L = 158.56 mg/dL
- 9.0 mmol/L = 162.16 mg/dL
- 9.2 mmol/L = 165.77 mg/dL
- 9.4 mmol/L = 169.37 mg/dL
- 9.5 mmol/L = 171.17 mg/dL
- 9.6 mmol/L = 172.97 mg/dL
- 9.8 mmol/L = 176.58 mg/dL
- 10.0 mmol/L = 180.18 mg/dL
- 10.5 mmol/L = 189.19 mg/dL
- 11 mmol/L = 198.20 mg/dL
- 11.5 mmol/L = 207.21 mg/dL
- 12.0 mmol/L = 216.22 mg/dL
- 12.5 mmol/L = 225.23 mg/dL
- 13.0 mmol/L = 234.23 mg/dL
- 13.5 mmol/L = 243.24 mg/dL
- 14.0 mmol/L = 252.25 mg/dL
- 14.5 mmol/L = 261.26 mg/dL
- 15.0 mmol/L = 270.27 mg/dL
- 15.5 mmol/L = 279.28 mg/dL
- 16.0 mmol/L = 288.29 mg/dL
- 16.5 mmol/L = 297.30 mg/dL
- 17.0 mmol/L = 306.31 mg/dL
- 17.5 mmol/L = 315.32 mg/dL
- 18.0 mmol/L = 324.32 mg/dL
- 18.5 mmol/L = 333.33 mg/dL
- 19.0 mmol/L = 342.34 mg/dL
- 19.5 mmol/L = 351.35 mg/dL
- 20.0 mmol/L = 360.36 mg/dL
- 20.5 mmol/L = 369.37 mg/dL
- 21.0 mmol/L = 378.38 mg/dL
- 22.0 mmol/L = 396.40 mg/dL
- 22.5 mmol/L = 405.41 mg/dL
- 23.0 mmol/L = 414.41 mg/dL
- 23.5 mmol/L = 423.42 mg/dL
- 24.0 mmol/L = 432.43 mg/dL
- 24.5 mmol/L = 441.44 mg/dL
- 25.0 mmol/L = 450.45 mg/dL
- 26.0 mmol/L = 468.47 mg/dL
- 27.0 mmol/L = 486.49 mg/dL
- 28.0 mmol/L = 504.50 mg/dL
- 29.0 mmol/L = 522.52 mg/dL
- 30.0 mmol/L = 540.54 mg/dL
- 31.0 mmol/L = 558.56 mg/dL
- 32.0 mmol/L = 576.58 mg/dL
- 33.0 mmol/L = 594.59 mg/dL
- 34.0 mmol/L = 612.61 mg/dL
- 35.0 mmol/L = 630.63 mg/dL
- 36.0 mmol/L = 648.65 mg/dL
- 37.0 mmol/L = 666.67 mg/dL
- 38.0 mmol/L = 684.68 mg/dL
- 39.0 mmol/L = 702.70 mg/dL
- 40.0 mmol/L = 720.72 mg/dL
- 41.0 mmol/L = 738.74 mg/dL
- 42.0 mmol/L = 756.76 mg/dL
- 43.0 mmol/L = 774.77 mg/dL
- 44.0 mmol/L = 792.79 mg/dL
- 45.0 mmol/L = 810.81 mg/dL
- 46.0 mmol/L = 828.83 mg/dL
- 47.0 mmol/L = 846.85 mg/dL
- 48.0 mmol/L = 864.86 mg/dL
- 49.0 mmol/L = 882.88 mg/dL
- 50.0 mmol/L = 900.90 mg/dL
- 55.0 mmol/L = 990.99 mg/dL
- 60.0 mmol/L = 1081.08 mg/dL
- 65.0 mmol/L = 1171.17 mg/dL
- 70.0 mmol/L = 1261.26 mg/dL
- 75.0 mmol/L = 1351.35 mg/dL
- 80.0 mmol/L = 1441.44 mg/dL
- 85.0 mmol/L = 1531.53 mg/dL
- 90.0 mmol/L = 1621.62 mg/dL
- 95.0 mmol/L = 1711.71 mg/dL
- 100.0 mmol/L = 1801.80 mg/dL
- 105.0 mmol/L = 1891.89 mg/dL
- 110.0 mmol/L = 1981.98 mg/dL
- 115.0 mmol/L = 2072.07 mg/dL
- 120.0 mmol/L = 2162.16 mg/dL
- 125.0 mmol/L = 2252.25 mg/dL
- 130.0 mmol/L = 2342.34 mg/dL
- 135.0 mmol/L = 2432.43 mg/dL
- 140.0 mmol/L = 2522.52 mg/dL
- 145.0 mmol/L = 2612.61 mg/dL
- 150.0 mmol/L = 2702.70 mg/dL
- 155.0 mmol/L = 2792.79 mg/dL
- 160.0 mmol/L = 2882.88 mg/dL
- 165.0 mmol/L = 2972.97 mg/dL
- 170.0 mmol/L = 3063.06 mg/dL
- 175.0 mmol/L = 3153.15 mg/dL
- 180.0 mmol/L = 3243.24 mg/dL
- 185.0 mmol/L = 3333.33 mg/dL
- 190.0 mmol/L = 3423.42 mg/dL
- 195.0 mmol/L = 3513.51 mg/dL
- 200.0 mmol/L = 3603.60 mg/dL
- 205.0 mmol/L = 3693.69 mg/dL
- 210.0 mmol/L = 3783.78 mg/dL
- 215.0 mmol/L = 3873.87 mg/dL
- 220.0 mmol/L = 3963.96 mg/dL
- 225.0 mmol/L = 4054.05 mg/dL
- 230.0 mmol/L = 4144.14 mg/dL
- 235.0 mmol/L = 4234.23 mg/dL
- 240.0 mmol/L = 4324.32 mg/dL
- 245.0 mmol/L = 4414.41 mg/dL
- 250.0 mmol/L = 4504.50 mg/dL
- 260.0 mmol/L = 4684.68 mg/dL
- 270.0 mmol/L = 4864.86 mg/dL
- 280.0 mmol/L = 5045.05 mg/dL
- 290.0 mmol/L = 5225.23 mg/dL
- 300.0 mmol/L = 5405.41 mg/dL
- 310.0 mmol/L = 5585.59 mg/dL
- 320.0 mmol/L = 5765.77 mg/dL
- 330.0 mmol/L = 5945.95 mg/dL
- 340.0 mmol/L = 6126.13 mg/dL
- 350.0 mmol/L = 6306.31 mg/dL
- 360.0 mmol/L = 6486.49 mg/dL
- 370.0 mmol/L = 6666.67 mg/dL
- 380.0 mmol/L = 6846.85 mg/dL
- 390.0 mmol/L = 7027.03 mg/dL
- 400.0 mmol/L = 7207.21 mg/dL
- 410.0 mmol/L = 7387.39 mg/dL
- 420.0 mmol/L = 7567.57 mg/dL
- 430.0 mmol/L = 7747.75 mg/dL
- 440.0 mmol/L = 7927.93 mg/dL
- 450.0 mmol/L = 8108.11 mg/dL
- 460.0 mmol/L = 8288.29 mg/dL
- 470.0 mmol/L = 8468.47 mg/dL
- 480.0 mmol/L = 8648.65 mg/dL
- 490.0 mmol/L = 8828.83 mg/dL
- 500.0 mmol/L = 9009.01 mg/dL
*mg/dL measurements shortened to 2 decimal places with no rounding.
mg/dl /L to mmol/L Blood Glucose Conversion Table*
- 0.1 mg/dL = 0.006 mmol/L
- 0.2 mg/dL = 0.011 mmol/L
- 0.3 mg/dL = 0.017 mmol/L
- 0.4 mg/dL = 0.022 mmol/L
- 0.5 mg/dL = 0.028 mmol/L
- 0.6 mg/dL = 0.033 mmol/L
- 0.7 mg/dL = 0.039 mmol/L
- 0.8 mg/dL = 0.044 mmol/L
- 0.9 mg/dL = 0.050 mmol/L
- 1.0 mg/dL = 0.056 mmol/L
- 1.1 mg/dL = 0.061 mmol/L
- 1.2 mg/dL = 0.067 mmol/L
- 1.3 mg/dL = 0.072 mmol/L
- 1.4 mg/dL = 0.078 mmol/L
- 1.5 mg/dL = 0.083 mmol/L
- 1.6 mg/dL = 0.089 mmol/L
- 1.7 mg/dL = 0.094 mmol/L
- 1.8 mg/dL = 0.100 mmol/L
- 1.9 mg/dL = 0.105 mmol/L
- 2.0 mg/dL = 0.111 mmol/L
- 2.1 mg/dL = 0.117 mmol/L
- 2.2 mg/dL = 0.122 mmol/L
- 2.3 mg/dL = 0.128 mmol/L
- 2.4 mg/dL = 0.133 mmol/L
- 2.5 mg/dL = 0.139 mmol/L
- 2.6 mg/dL = 0.144 mmol/L
- 2.7 mg/dL = 0.150 mmol/L
- 2.8 mg/dL = 0.155 mmol/L
- 2.9 mg/dL = 0.161 mmol/L
- 3.0 mg/dL = 0.167 mmol/L
- 3.1 mg/dL = 0.172 mmol/L
- 3.2 mg/dL = 0.178 mmol/L
- 3.3 mg/dL = 0.183 mmol/L
- 3.4 mg/dL = 0.189 mmol/L
- 3.5 mg/dL = 0.194 mmol/L
- 3.6 mg/dL = 0.200 mmol/L
- 3.7 mg/dL = 0.205 mmol/L
- 3.8 mg/dL = 0.211 mmol/L
- 3.9 mg/dL = 0.216 mmol/L
- 4.0 mg/dL = 0.222 mmol/L
- 4.1 mg/dL = 0.228 mmol/L
- 4.2 mg/dL = 0.233 mmol/L
- 4.3 mg/dL = 0.239 mmol/L
- 4.4 mg/dL = 0.244 mmol/L
- 4.5 mg/dL = 0.250 mmol/L
- 4.6 mg/dL = 0.255 mmol/L
- 4.7 mg/dL = 0.261 mmol/L
- 4.8 mg/dL = 0.266 mmol/L
- 4.9 mg/dL = 0.272 mmol/L
- 5.0 mg/dL = 0.278 mmol/L
- 5.2 mg/dL = 0.289 mmol/L
- 5.4 mg/dL = 0.300 mmol/L
- 5.5 mg/dL = 0.305 mmol/L
- 5.6 mg/dL = 0.311 mmol/L
- 5.8 mg/dL = 0.322 mmol/L
- 6.0 mg/dL = 0.333 mmol/L
- 6.2 mg/dL = 0.344 mmol/L
- 6.4 mg/dL = 0.355 mmol/L
- 6.5 mg/dL = 0.361 mmol/L
- 6.6 mg/dL = 0.366 mmol/L
- 6.8 mg/dL = 0.377 mmol/L
- 7.0 mg/dL = 0.389 mmol/L
- 7.2 mg/dL = 0.400 mmol/L
- 7.4 mg/dL = 0.411 mmol/L
- 7.5 mg/dL = 0.416 mmol/L
- 7.6 mg/dL = 0.422 mmol/L
- 7.8 mg/dL = 0.433 mmol/L
- 8.0 mg/dL = 0.444 mmol/L
- 8.2 mg/dL = 0.455 mmol/L
- 8.4 mg/dL = 0.466 mmol/L
- 8.5 mg/dL = 0.472 mmol/L
- 8.6 mg/dL = 0.477 mmol/L
- 8.8 mg/dL = 0.488 mmol/L
- 9.0 mg/dL = 0.500 mmol/L
- 9.2 mg/dL = 0.511 mmol/L
- 9.4 mg/dL = 0.522 mmol/L
- 9.5 mg/dL = 0.527 mmol/L
- 9.6 mg/dL = 0.533 mmol/L
- 9.8 mg/dL = 0.544 mmol/L
- 10.0 mg/dL = 0.555 mmol/L
- 10.5 mg/dL = 0.583 mmol/L
- 11.0 mg/dL = 0.611 mmol/L
- 11.5 mg/dL = 0.638 mmol/L
- 12.0 mg/dL = 0.666 mmol/L
- 12.5 mg/dL = 0.694 mmol/L
- 13.0 mg/dL = 0.722 mmol/L
- 13.5 mg/dL = 0.749 mmol/L
- 14.0 mg/dL = 0.777 mmol/L
- 14.5 mg/dL = 0.805 mmol/L
- 15.0 mg/dL = 0.833 mmol/L
- 15.5 mg/dL = 0.860 mmol/L
- 16.0 mg/dL = 0.888 mmol/L
- 16.5 mg/dL = 0.916 mmol/L
- 17.0 mg/dL = 0.944 mmol/L
- 17.5 mg/dL = 0.971 mmol/L
- 18.0 mg/dL = 0.999 mmol/L
- 18.5 mg/dL = 1.027 mmol/L
- 19.0 mg/dL = 1.055 mmol/L
- 19.5 mg/dL = 1.082 mmol/L
- 20.0 mg/dL = 1.110 mmol/L
- 20.5 mg/dL = 1.138 mmol/L
- 21.0 mg/dL = 1.166 mmol/L
- 21.5 mg/dL = 1.193 mmol/L
- 22.0 mg/dL = 1.221 mmol/L
- 22.5 mg/dL = 1.249 mmol/L
- 23.0 mg/dL = 1.277 mmol/L
- 23.5 mg/dL = 1.304 mmol/L
- 24.0 mg/dL = 1.332 mmol/L
- 24.5 mg/dL = 1.360 mmol/L
- 25.0 mg/dL = 1.388 mmol/L
- 26.0 mg/dL = 1.443 mmol/L
- 27.0 mg/dL = 1.499 mmol/L
- 28.0 mg/dL = 1.554 mmol/L
- 29.0 mg/dL = 1.610 mmol/L
- 30.0 mg/dL = 1.665 mmol/L
- 31.0 mg/dL = 1.721 mmol/L
- 32.0 mg/dL = 1.776 mmol/L
- 33.0 mg/dL = 1.832 mmol/L
- 34.0 mg/dL = 1.887 mmol/L
- 35.0 mg/dL = 1.943 mmol/L
- 36.0 mg/dL = 1.998 mmol/L
- 37.0 mg/dL = 2.054 mmol/L
- 38.0 mg/dL = 2.109 mmol/L
- 39.0 mg/dL = 2.165 mmol/L
- 40.0 mg/dL = 2.220 mmol/L
- 40.0 mg/dL = 2.220 mmol/L
- 41.0 mg/dL = 2.276 mmol/L
- 42.0 mg/dL = 2.331 mmol/L
- 43.0 mg/dL = 2.387 mmol/L
- 44.0 mg/dL = 2.442 mmol/L
- 45.0 mg/dL = 2.498 mmol/L
- 46.0 mg/dL = 2.553 mmol/L
- 47.0 mg/dL = 2.609 mmol/L
- 48.0 mg/dL = 2.664 mmol/L
- 49.0 mg/dL = 2.720 mmol/L
- 50.0 mg/dL = 2.775 mmol/L
- 55.0 mg/dL = 3.053 mmol/L
- 60.0 mg/dL = 3.330 mmol/L
- 65.0 mg/dL = 3.608 mmol/L
- 70.0 mg/dL = 3.885 mmol/L
- 75.0 mg/dL = 4.163 mmol/L
- 80.0 mg/dL = 4.440 mmol/L
- 85.0 mg/dL = 4.718 mmol/L
- 90.0 mg/dL = 4.995 mmol/L
- 95.0 mg/dL = 5.273 mmol/L
- 100.0 mg/dL = 5.550 mmol/L
- 105.0 mg/dL = 5.828 mmol/L
- 110.0 mg/dL = 6.105 mmol/L
- 115.0 mg/dL = 6.383 mmol/L
- 120.0 mg/dL = 6.660 mmol/L
- 125.0 mg/dL = 6.938 mmol/L
- 130.0 mg/dL = 7.215 mmol/L
- 135.0 mg/dL = 7.493 mmol/L
- 140.0 mg/dL = 7.770 mmol/L
- 145.0 mg/dL = 8.048 mmol/L
- 150.0 mg/dL = 8.325 mmol/L
- 155.0 mg/dL = 8.603 mmol/L
- 160.0 mg/dL = 8.880 mmol/L
- 165.0 mg/dL = 9.158 mmol/L
- 170.0 mg/dL = 9.435 mmol/L
- 175.0 mg/dL = 9.713 mmol/L
- 180.0 mg/dL = 9.990 mmol/L
- 185.0 mg/dL = 10.268 mmol/L
- 190.0 mg/dL = 10.545 mmol/L
- 195.0 mg/dL = 10.823 mmol/L
- 200.0 mg/dL = 11.100 mmol/L
- 205.0 mg/dL = 11.378 mmol/L
- 210.0 mg/dL = 11.655 mmol/L
- 215.0 mg/dL = 11.933 mmol/L
- 220.0 mg/dL = 12.210 mmol/L
- 225.0 mg/dL = 12.488 mmol/L
- 230.0 mg/dL = 12.765 mmol/L
- 235.0 mg/dL = 13.043 mmol/L
- 240.0 mg/dL = 13.320 mmol/L
- 245.0 mg/dL = 13.598 mmol/L
- 250.0 mg/dL = 13.875 mmol/L
- 260.0 mg/dL = 14.430 mmol/L
- 270.0 mg/dL = 14.985 mmol/L
- 280.0 mg/dL = 15.540 mmol/L
- 290.0 mg/dL = 16.095 mmol/L
- 300.0 mg/dL = 16.650 mmol/L
- 310.0 mg/dL = 17.205 mmol/L
- 320.0 mg/dL = 17.760 mmol/L
- 330.0 mg/dL = 18.315 mmol/L
- 340.0 mg/dL = 18.870 mmol/L
- 350.0 mg/dL = 19.425 mmol/L
- 360.0 mg/dL = 19.980 mmol/L
- 370.0 mg/dL = 20.535 mmol/L
- 380.0 mg/dL = 21.090 mmol/L
- 390.0 mg/dL = 21.645 mmol/L
- 400.0 mg/dL = 22.200 mmol/L
- 410.0 mg/dL = 22.755 mmol/L
- 420.0 mg/dL = 23.310 mmol/L
- 430.0 mg/dL = 23.865 mmol/L
- 440.0 mg/dL = 24.420 mmol/L
- 450.0 mg/dL = 24.975 mmol/L
- 460.0 mg/dL = 25.530 mmol/L
- 470.0 mg/dL = 26.085 mmol/L
- 480.0 mg/dL = 26.640 mmol/L
- 490.0 mg/dL = 27.195 mmol/L
- 500.0 mg/dL = 27.750 mmol/L
- 540.0 mg/dL = 30.000 mmol/L
- 600.0 mg/dL = 33.300 mmol/L
- 700.0 mg/dL = 38.800 mmol/L
- 720.0 mg/dL = 40.000 mmol/L
- 800.0 mg/dL = 44.400 mmol/L
- 900.0 mg/dL = 50.000 mmol/L
*All figures are approximate only as mmol/L measurements have been shortened to 3 decimal places with no rounding.
Difference Between Normal and Diabetic Blood Sugar Levels
If you are a diabetic, or have prediabetes, it is very important that you control your blood glucose levels as high blood sugar levels that are too high for long periods of time increase the risk of diabetes complications such as kidney disease, nerve damage, retinal disease, heart disease, stroke developing.
For the majority of healthy individuals your normal blood sugar levels should be around:
- Between 4.0 to 5.4 mmol/L (72 - 99 mg/dL) when fasting.
- Up to 7.8 mmol/L (140 mg/dL) 2 hours after eating.
For people with diabetes, blood sugar level targets are:
- Before meals: 4 to 7 mmol/L for people with type 1 or type 2 diabetes.
- After meals: under 9 mmol/L for people with type 1 diabetes
- Under 8.5mmol/L for people with type 2 diabetes.
Target Blood Sugar Levels Chart
See our full Blood Sugar Level Chart which shows low, normal, and high blood glucose measurements and what they mean.
This is for informational purposes only. For medical advice or diagnosis, consult a professional as these values are general guidelines only. Always follow the specific targets set by your doctor or healthcare provider.
Frequently Asked Questions
Is mmol/L the unit used in the United Kingdom, Canada and Australia?
Yes, those countries report blood glucose in mmol/L along with most of Europe, Asia and the rest of the world. Travelers and people reading overseas guidelines usually need to convert a mg/dL value before it makes sense to them.
What blood sugar reading is generally considered low?
A level below about 4.0 mmol/L, which is roughly 72 mg/dL, is usually treated as low blood sugar, and symptoms can include shakiness, sweating, confusion and hunger. Anyone who experiences repeated low readings should discuss the pattern with their doctor rather than adjusting treatment alone.
Does the same divide-by-18 rule work for other blood tests such as cholesterol?
No, each substance has its own molecular weight, so cholesterol uses a factor of about 38.67 and triglycerides use about 88.57. The number 18 applies only to glucose, which is why a dedicated conversion chart for each test is useful.
How long do I need to fast before a fasting glucose test?
Most laboratories ask for at least eight hours with no food or caloric drinks, with plain water allowed. Your clinic will give exact instructions, since eating or drinking beforehand can push the result higher and make it harder to interpret.
Do continuous glucose monitors report in mmol/L or mg/dL?
Continuous glucose monitors display readings in whichever unit the device or its app is set to, and many allow the user to change it. The same conversion applies to the trend data these systems record, so charts can be compared with meter or lab values.
Should I keep a log in one unit or both?
Recording every reading in a single unit makes trends easier to spot and reduces the chance of a mix-up when you share the log with your care team. If you switch countries or devices, note the unit beside the date so older entries stay clear.
Can illness, stress or dehydration change a blood glucose reading?
Yes, infection, physical stress, some medications including steroids, and dehydration can all raise glucose readings temporarily. Telling your provider about these factors helps them judge whether a high result reflects a real change in control.
Why do some conversion charts show slightly different numbers than others?
Differences come from the number of decimal places used and whether the source rounds or truncates the result, so a value may appear as 90 mg/dL or 90.09 mg/dL. The variation is small enough that it rarely affects interpretation, but medical decisions should rely on the precise figure your provider uses.
Insights, Analysis, and Developments
Editorial Note: In a world where medical information often feels complex and inconsistent across regions, this resource offers something refreshingly simple yet critically useful. Accurate blood glucose monitoring is critical for diabetes management, and this comprehensive conversion chart bridges the gap between international and U.S. based measurement systems. By offering clarity and ease of use, it supports better communication and understanding across healthcare providers and patients worldwide, ensuring that vital health decisions are based on precise data. Its accessible design and practical value make it a worthy bookmark for households and clinics alike.
Author Credentials: Ian is the founder and Editor-in-Chief of Disabled World, a leading resource for news and information on disability issues. With a global perspective shaped by years of travel and lived experience, Ian is a committed proponent of the Social Model of Disability, a transformative framework developed by disabled activists in the 1970s that emphasizes dismantling societal barriers rather than focusing solely on individual impairments. His work reflects a deep commitment to disability rights, accessibility, and social inclusion. To learn more about Ian's background, expertise, and accomplishments, visit his full biography.