Mmol/L to Mg/dL Calculator

Laboratory reports commonly express concentration in either millimoles per liter (mmol/L) or milligrams per deciliter (mg/dL). Mmol/L describes how many thousandths of a mole of a substance are present in one liter of fluid, while mg/dL describes the mass in milligrams contained in one tenth of a liter. Both units describe concentration, but they measure different physical quantities. That is why there is no single universal multiplier for every blood analyte. The correct conversion depends on molecular weight. To convert mmol/L to mg/dL, multiply the mmol/L value by the substance's molecular weight and divide by ten. Glucose has a molecular weight near 180.182 grams per mole, producing the familiar factor 18.0182. A glucose result of 5.5 mmol/L therefore becomes 99.10 mg/dL. Cholesterol uses 38.67, triglycerides use the conventional clinical factor 88.57, creatinine uses 11.312, urea uses 6.006, and calcium uses 4.008. The calculator selects the appropriate factor automatically. Unit awareness matters when interpreting laboratory results. Glucose targets in many countries are stated in mmol/L, while United States references often use mg/dL. Cholesterol and triglyceride thresholds also vary by reporting system. Copying a number without its unit can create a serious misunderstanding because 5.5 mmol/L glucose is a routine value, whereas 5.5 mg/dL glucose would be profoundly different. Always preserve the analyte name and unit when recording, comparing, or communicating a result. This converter is intended for transparent arithmetic and educational checking. It does not determine whether a result is normal, diagnose a condition, or replace the reference interval printed by the laboratory. Reference ranges can vary with specimen type, fasting status, age, pregnancy, assay method, and local clinical guidance. Triglyceride conversion is convention-based because reported triglycerides are a mixture rather than one pure molecule. For decisions about diabetes, kidney function, lipids, electrolytes, or treatment, review the original report with a qualified healthcare professional. For reliable use, select the exact substance shown on the report, enter the mmol/L number without commas or units, and retain sensible precision. The calculator displays two decimal places, which is usually sufficient for comparison, but the original laboratory value remains authoritative. Reverse conversion from mg/dL to mmol/L is performed by dividing by the same substance-specific factor.