Printable Blood Sugar mmol/L to mg/dl Conversion Chart
Author: Ian C. Langtree - Writer/Editor for Disabled World (DW)
Published: 21 Aug 2023 - Updated: 4 Sep 2026
Publication Type: Charts, Graphs, Tables
Table of Contents:
Synopsis - Definition - Overview - FAQs - Insights, Updates - Related Content
Synopsis
This information provides a printable reference chart and table for converting blood glucose readings between mmol/L and mg/dl, the two units most widely used to measure blood sugar concentration. Because mmol/L (millimoles per liter) is the international standard while mg/dl remains common in countries such as the United States, the table offers a practical side-by-side reference for people who need to read results across both systems. It applies the standard glucose conversion factor of 0.0555 and can be printed directly from the browser, making it a useful everyday tool for people managing diabetes, seniors tracking their levels, caregivers, and anyone who needs to interpret glucose values reported in an unfamiliar unit.
At a Glance
- 1 - A companion table converting mg/dl to mmol/L is also available on the site. Both charts work together for readings reported in either unit.
- 2 - mmol/L expresses glucose as a molar concentration, while mg/dl gives the weight of glucose in a set volume of blood. Both describe the same reading in different terms.
- 3 - The print dialog lets you choose a destination and adjust settings before printing. A copy kept beside a glucose monitor gives a quick reference without recalculating figures by hand.
- 4 - The chart forms part of a wider article on blood sugar concentration and glucose levels in the blood. The values are a guide for interpreting readings, not a replacement for advice from a doctor or diabetes care team.
Topic Definition
- Blood Sugar Conversion
Blood sugar conversion is the practice of restating a blood glucose result in a different unit of measurement, almost always between millimoles per liter (mmol/L) and milligrams per deciliter (mg/dl). The mmol/L figure describes how many glucose molecules are present in a liter of blood and serves as the international standard, while mg/dl describes the weight of glucose in a tenth of a liter and remains the everyday unit in the United States and several other countries. A single fixed factor of 0.0555 links the two, so multiplying a mg/dl value by 0.0555 returns the mmol/L equivalent, and the reverse calculation multiplies mmol/L by roughly 18. Because the numbers describe the same sample, conversion changes only the scale of the reading, which is why a chart or table is useful for anyone comparing a meter, a laboratory report, or medical guidance issued in an unfamiliar unit.
Overview
Our printable mmol/L to mg/dl table below forms part of our article on converting mmol/L to mg/dl blood sugar levels which also includes additional information on blood sugar concentration or blood glucose levels in the blood.
Blood Sugar mmol/L to mg/dl Conversion Table
*All figures are approximate only as mmol/L measurements have been shortened to 3 decimal places with no rounding.
The conversion factor used is 0.0555, which is the standard factor for converting mg/dL to mmol/L for glucose measurements.
Note: Extremely high values (above about 400 mg/dL or 22.2 mmol/L) are considered severe hyperglycemia and would be medical emergencies in real-life situations. The higher values are included for completeness of the conversion table, but they do not represent normal or even common blood glucose levels.
How to Print the Chart
To print the above chart click "File" and then "Print". Or, use a keyboard shortcut:
Mac: Command-key + p
Windows and Linux: Ctrl + p
In the window that appears, select the destination and change your preferred print settings.
Click "Print".
Also see our Blood Sugar mg/dl to mmol/L Conversion Table
Frequently Asked Questions
How do I convert mmol/L to mg/dl without a chart
Multiply the mmol/L reading by about 18 to get the approximate mg/dl value, and multiply a mg/dl reading by 0.0555 to get mmol/L. A calculator or printed table is helpful because the factor produces long decimals.
Which countries report blood glucose in mg/dl
The United States, along with countries such as Japan, France, Israel, and parts of Latin America and southern Europe, commonly reports glucose in mg/dl. The United Kingdom, Canada, Australia, China, and most of Europe use mmol/L.
What is considered a normal fasting blood glucose level
For most adults without diabetes, fasting glucose generally falls between about 70 and 99 mg/dl, which is roughly 3.9 to 5.5 mmol/L. Individual targets vary, so a doctor or diabetes care team should confirm what range applies to you.
At what point is blood sugar considered low
A reading below about 70 mg/dl, or 3.9 mmol/L, is usually described as hypoglycemia and needs prompt attention. Anyone who experiences frequent low readings should discuss the pattern with a clinician.
Can I change the units displayed on my glucose meter
Many meters allow the display to be switched between mmol/L and mg/dl through the settings menu, while others are locked to the unit used in the country of sale. The user manual for the specific device will confirm whether switching is possible.
Does the 0.0555 factor work for other blood tests
No, the factor is specific to glucose because it is based on the molecular weight of glucose. Cholesterol, triglycerides, creatinine, and other substances each have their own conversion factors.
Is HbA1c measured in mmol/L
No, HbA1c is reported either as a percentage or in mmol/mol, which are different measurements from a single glucose reading. HbA1c reflects average glucose over roughly two to three months rather than the level at one moment.
Why does my meter reading differ from my laboratory result
Home meters usually test capillary blood from a fingertip while laboratories test venous plasma, and the two samples can differ even when taken minutes apart. Sample timing, food intake, and the accuracy tolerance built into consumer meters all add to the variation.
Insights, Analysis, and Developments
Editorial Note: A simple conversion chart can remove a surprising amount of confusion for anyone who moves between healthcare systems, travels internationally, or uses meters and lab reports that present results in different units. Keeping a printed copy near a glucose monitor or in a diabetes care kit gives a quick, reliable point of reference without needing to recalculate figures by hand or rely on a connected device. As always, the numbers here are a guide for interpreting readings rather than a substitute for the advice of a doctor or diabetes care team, who can place any individual result in the context of a person's overall health.
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.