Lab Unit Converter

Convert between volume, mass, concentration, and molarity units — for pipetting, reagent prep, and reporting lab results.

Convert

Volume

1 mL = 1000 µL

Volume

1 L = 1000 mL

Mass

1 mg = 1000 µg

Mass

1 g = 1000 mg

Concentration

1 mg/mL = 1000 µg/mL

Concentration

1 ng/µL = 1 µg/mL

Molarity

1 mM = 1000 µM

Molarity

1 µM = 1000 nM

Molarity

1 nM = 1000 pM

Glucose

mg/dL → mmol/L

Creatinine

mg/dL → µmol/L

Urea

mg/dL → mmol/L

Total Cholesterol

mg/dL → mmol/L

Triglycerides

mg/dL → mmol/L

Total Bilirubin

mg/dL → µmol/L

Calcium

mg/dL → mmol/L

Uric Acid

mg/dL → µmol/L

Hemoglobin

g/dL → g/L

Pick a category, enter a value, choose the unit you're converting from and to, then tap Convert.
For clinical lab tests, pick "Clinical Lab Test Results" as the category, choose the analyte, then convert between conventional and SI units.
Use the swap icon to quickly reverse the direction of a conversion.
Tap a card under "Common Conversions" or "Clinical Test Quick Reference" to load a frequently used pair.

Clinical test conversion factors are standard published conventional-to-SI factors and assume the test's typical reporting units (e.g. glucose in mg/dL, creatinine in mg/dL) — always confirm against your lab's actual reporting unit and reference range before using a converted value clinically.
Concentration and molarity conversions here are unit conversions only — converting between mass-based concentration (e.g. ng/µL) and molarity (e.g. nM) requires the molecule's molecular weight or average fragment size, which this tool doesn't ask for. Use the Library Molarity Calculator for that conversion.
Always double-check unit conversions against your SOP before using them in a reportable result, per your quality management system (e.g. ISO 15189).