Chemistry Unit Converters: Concentration and Temperature

Use these chemistry unit converters to work with concentrations, amounts of substance, temperature scales and entropy units. The PPM Converter, Molar Concentration calculator and Moles and Grams calculator help with solution preparation and chemical calculations, while Brix to SG converts sugar concentration for brewing and food testing.Students, lab professionals and researchers can also convert between Celsius, Fahrenheit, Kelvin and less common temperature scales. The Blood Sugar Converter and Cholesterol Converter provide unit conversions for clinical measurements.

mg to mL

Convert milligrams to milliliters (or the reverse) for liquid medicines and pure substances. Enter the concentration from the label or use a preset density, and get an instant, step-by-step result.

Blood Sugar Converter

Convert blood glucose readings between mg/dL and mmol/L instantly, and see how your fasting value compares to normal, prediabetes and diabetes reference ranges.

Gas PPM to mg/m³

Convert gas concentrations between ppm (volume) and mg/m³ (mass) using the ideal gas law. Enter the concentration, the gas molar mass, temperature and pressure to get instant results in mg/m³, ppm and µg/m³.

Brix to SG

Convert a refractometer or hydrometer reading between Brix, Plato and specific gravity. Enter your measured value, pick the unit, set the wort correction factor if needed, and get SG, °Bx, °P and estimated alcohol potential.

Cholesterol Converter

Convert cholesterol values between mg/dL and mmol/L for total cholesterol, LDL, HDL, and triglycerides. Enter your lab reading and instantly see the converted value with its interpretation category.

Fahrenheit to Celsius, Kelvin & More

Enter a temperature in Fahrenheit to see its equivalent in Celsius, Kelvin, Rankine, Newton, Delisle, Réaumur, and Rømer.

EC to TDS

Convert an electrical conductivity (EC) reading in µS/cm, mS/cm or S/m into an estimated TDS value in ppm. Choose the conversion factor your meter uses (0.5, 0.64 or 0.7) and get an instant result.

PPM Converter

Convert a concentration between ppm, percent, per mille, ppb and mg/L. Enter a value, pick its unit and the solution density to see all equivalent units at once.

Creatinine Units

Convert a serum creatinine value between mg/dL and µmol/L instantly, and see how your result compares with typical reference ranges for men and women.

Bilirubin Units

Convert a serum bilirubin result between mg/dL and µmol/L instantly, and see how your value compares with typical adult reference ranges for total and direct bilirubin.

Cortisol Units

Convert a serum cortisol result between µg/dL and nmol/L instantly. Enter your lab value, pick the unit and sampling time, and see the equivalent result with typical reference ranges.

Entropy Conversions

Convert an entropy value between the units offered by the calculator. Enter a Value, then choose the From unit and To unit; check the notes before comparing molar with total entropy or using the BTU and eV results.

Molar Concentration

Convert molar concentration between mol/L, mmol/L, kmol/m³, and other supported units. Enter a value, then choose the starting and target units.

Rankine to Celsius, Fahrenheit & more

Enter a temperature in degrees Rankine to convert it to Celsius, Fahrenheit, Kelvin, Newton, Delisle, Réaumur, and Rømer.

Vitamin D Units

Convert your 25-hydroxyvitamin D blood test result between ng/mL and nmol/L instantly. Enter your value and unit to get both measurements plus a plain-language interpretation.

Celsius to Fahrenheit, Kelvin & More

Enter a temperature in Celsius to convert it to Fahrenheit, Kelvin, Rankine, Newton, Delisle, Réaumur, and Rømer.

Reaumur to Celsius, Fahrenheit & More

Enter a temperature in degrees Reaumur to convert it to Celsius, Fahrenheit, Kelvin, Rankine, Newton, Delisle, and Rømer.

Delisle to Celsius, Fahrenheit, Kelvin & More

Enter a temperature in degrees Delisle to convert it to Celsius, Fahrenheit, Kelvin, Rankine, Newton, Réaumur, and Rømer.

Kelvin to Celsius, Fahrenheit & More

Enter a temperature in kelvin to convert it to Celsius, Fahrenheit, Rankine, Newton, Delisle, Réaumur, and Rømer.

Moles and Grams

Convert a substance’s mass in grams to moles. Enter the Mass of substance and its Molar mass to calculate the Amount of substance.

Testosterone Units

Convert testosterone levels between ng/dL and nmol/L instantly. Enter your lab result, pick the unit, and see the equivalent value compared with typical male and female reference ranges.

Calculators