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Both calculators run independently — change the inputs on either side to compare results.

Protein Concentration Calculator

Compute protein concentration from absorbance at 595 nm using a linear standard curve. The standard back-calculation for Bradford and similar dye-binding assays in molecular biology labs.

Absorbance at 595nm (A595)

Standard Curve Slope

Y-intercept

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Biology

DNA Concentration Calculator

Estimate double-stranded DNA concentration from absorbance at 260 nm using the standard 50 μg/ml per A260 conversion. The default UV-spectroscopy method used in every molecular-biology lab for quick nucleic-acid quantification.

Absorbance at 260nm (A260)

Dilution Factor

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Key differences

	Protein Concentration Calculator	DNA Concentration Calculator
Category	Biology	Biology
Inputs required	3	2
Result	Protein Concentration (μg/ml)	DNA Concentration (μg/ml)
What it does	Compute protein concentration from absorbance at 595 nm using a linear standard curve. The standard back-calculation for Bradford and similar dye-binding assays in molecular biology labs.	Estimate double-stranded DNA concentration from absorbance at 260 nm using the standard 50 μg/ml per A260 conversion. The default UV-spectroscopy method used in every molecular-biology lab for quick nucleic-acid quantification.