Blood glucose unit converter
Convert between mg/dL and mmol/L with clinical interpretation, or use the separate measurement-only laboratory converter below.
Reference ranges & assumptions
Defaults are commonly cited references. Adjust to match your laboratory.
Safety checks
- This tool supports calculation and education only.
- It does not diagnose, prescribe, or replace clinical references.
- Verify with current formularies and hospital protocols.
- Confirm units match your selections.
Basis and limits
- Conversion: 1 mmol/L = 18 mg/dL (adjustable).
- Dog: ~70–110 mg/dL (3.9–6.1 mmol/L).
- Cat: ~70–120 mg/dL (3.9–6.7 mmol/L).
- Scope: Converts units with cues. Does not diagnose.
Formula
mg/dL → mmol/L: value ÷ factor
mmol/L → mg/dL: value × factor
DVMReady · Laboratory unit conversion
Measurement conversion
Laboratory unit converter
Choose the measured substance, then convert in either direction. No reference range, diagnosis or treatment is inferred.
Converted measurement
Enter a value to convert.
Reporting conventions, assay methods and the laboratory's reference intervals still apply.
Check the calculation
Factors and sources
Factors checked October 30, 2026. Prefix and volume units use dimensional scaling. A conversion factor is not a clinical reference limit.
The glucose interpretation above retains its adjustable rounded factor of 18 mg/dL per mmol/L. This measurement-only conversion uses 0.0555 mmol/L per mg/dL, so small rounding differences are expected.
Convert dose, concentration or infusion-rate units · Return to glucose interpretation
Last reviewed: May 2026
References: Plumb's Veterinary Drug Handbook, Merck Veterinary Manual, BSAVA Formulary, AAHA Guidelines. Verify against current references before clinical use.