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US Blood Sugar Unit Converter: Switch Between mg/dL and mmol/L

Instantly translate blood glucose readings between US (mg/dL) and International (mmol/L) units. Ideal for American patients using imported devices like Dexcom…

Blood Glucose Input

Select the unit displayed on your American glucometer or international lab report

Unit Categories

Quick Set

Fasting lower bound (70 mg/dL)
Fasting upper bound (99 mg/dL)
Diabetes threshold (126 mg/dL)
Post-meal target max (180 mg/dL)
High alert example (250 mg/dL)

Conversion Results

(3 units)

Blood Glucose Conversion Tools

MMOL_L → MG_DL
Millimoles per Liter to Milligrams per Deciliter
MG_DL → MMOL_L
Milligrams per Deciliter to Millimoles per Liter

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How to Use the Blood Glucose Converter

Convert glucose readings in seconds with these simple steps

  1. 1

    Enter Your Reading

    Type the number shown on your home monitor, such as a OneTouch or Accu-Chek device.

  2. 2

    Select Source Unit

    Choose mg/dL (US standard), mmol/L, mg/L, or g/L as your starting unit.

  3. 3

    Review All Results

    Instantly view the conversion across all supported blood glucose units.

  4. 4

    Copy for Records

    Copy results for your medical log, MyChart patient portal, or physician visit in Houston.

Medical-Standard Unit Conversion

Designed for US diabetes management, translating lab results for travel, and patient-doctor communication.

Instant Results

Get all unit conversions immediately as you type.

Clinical Precision

Applies standard glucose conversion factors used in American medical practice.

Multiple Unit Support

Handles both core clinical units and standard mass concentration units.

Perfect For

Daily diabetes tracking and personal logbooks Sharing data with your US doctor or reviewing international lab reports Patient education and caregiver discussions

Frequently Asked Questions

What is the formula for converting mg/dL to mmol/L?
To convert glucose, divide mg/dL by 18.0182 to get mmol/L. Conversely, multiply mmol/L by 18.0182 to get mg/dL. In clinical practice, this is often simplified to a factor of 18.
Why does the USA use mg/dL instead of mmol/L?
The USA uses the mg/dL standard, while most other countries (including the UK and Canada) use mmol/L. This tool helps bridge that gap if you are reviewing studies or logs from abroad.
Can I use this for both CGM and fingerstick readings?
Yes. Whether you use a Dexcom G7 or a standard fingerstick meter, the unit conversion logic remains the same for the raw number.
Is this tool a substitute for medical diagnosis?
No. It strictly converts numeric values between units. Only a qualified healthcare professional can diagnose diabetes or adjust your medication.
How do mg/L and g/L relate to the standard mg/dL?
There is a direct relationship: 1 mg/dL is equal to 10 mg/L and 0.01 g/L. These represent the same glucose concentration in different magnitude units.