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unit.concentration Calculator
Converts molarity (M), millimolarity (mM), mg/mL, and percent weight/volume for solution preparation. Lab chemists constantly switch between these units when preparing buffers and reagents.
Inputs
G Per L
Reference formula or conversion factor shown for context.
Mw
Mass of one mole of the substance (g/mol). Found by summing atomic weights. Converts between grams and moles.
Vol
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
Density
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Results
molarity (mol/L)
Concentration in moles per litre (mol/L or M). Molarity = moles of solute / litres of solution. To dilute: C1V1 = C2V2.
w/w %
Reference formula or conversion factor shown for context.
g/L
Reference formula or conversion factor shown for context.
ppm (mg/L)
Reference formula or conversion factor shown for context.