Blood test calculators
Convert common blood test units and calculate values already contained in your results. These tools are free, private and run entirely in your browser.
Understand the units in your blood test results
Each tool performs a published conversion or calculation. It does not diagnose a condition or assess your personal risk.
HbA1c converter
Convert HbA1c between mmol/mol and percentage.
Open calculator Blood sugar calculatorBlood glucose converter
Convert glucose between mmol/L and mg/dL.
Open calculator Heart health calculatorCholesterol unit converter
Convert cholesterol and triglyceride units correctly.
Open calculator Heart health calculatorCholesterol ratio calculator
Calculate total:HDL ratio and non-HDL cholesterol.
Open calculatorOne result, expressed clearly
Laboratories in different countries may report the same biomarker using different units. These calculators help you compare the notation without changing the underlying measurement.
Always retain the original result and unit from your laboratory report. Reference ranges and clinical interpretation belong to the laboratory method and your individual health context.