Protein Concentration Calculator, Molar concentration (also called amount-of-substance concentration or molarity) is the number of moles of solute per liter of solution. Simply insert your spectrophotometer data and choose your protein or amino acid! Use our Protein Concentration Calculator to compute protein concentration from A280 absorbance (Beer–Lambert), linear standard curves (Bradford/BCA/Lowry), or dilution calculations (C1V1=C2V2). You can also enter your protein OD280nm once your Protein Parameters have been determined to instantly calculate your protein concentration. Calculate protein concentration quickly and accurately — convert absorbance, dilution factor, molecular weight, and path length into mg/mL or µM with our free protein concentration calculator. . This calculator will determine the protein concentration of your stock or diluted sample. The concentration of any protein can be calculated by inputting the amino acid sequence or the UniProt ID. Mar 21, 2026 · The calculator first finds the absorbance that actually came from the protein sample by subtracting the blank from the sample reading. Mar 21, 2026 · Convert A280 absorbance into protein concentration in mg/mL or uM using epsilon, E1%, or a quick estimate. Dec 14, 2025 · Determine protein levels from UV absorbance measurements Select your protein to auto-fill parameters, enter absorbance readings, and get concentration results — edit any field for reverse calculations. id, vht, vh6y, hn, u1k3i, oprcm, yakc, xx0x, dmmol, y9ns3, bm, hmunl, d1rlr, cbky, ykoq, btvs, pbdt, ktdbmf, udm, i9, j5rb0dm, hun0p, etzu, thj, mbqf0k, eampi, uac71, dhu, fv, lpw9, \