BCA Sample Volume Calculator | Protein Quantification Tool

Calculate sample volumes from BCA absorbance readings instantly. Get accurate protein loading volumes for western blots, enzyme assays, and IP experiments.

BCA Absorbance Sample Volume Calculator

Calculate precise sample volumes from BCA absorbance readings and target protein mass. Enter absorbance values and desired protein amounts to get exact volumes for consistent loading.

Standard Curve Configuration

Standard BCA
Enhanced BCA
Micro BCA
Custom Parameters

Sample Inputs

Sample 1

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N/A μL

Calculation Formula

The sample volume is calculated using the following formula:

Sample Volume (μL) = Sample Mass (μg) / Protein Concentration (μg/μL)
Usage Tips

• Keep absorbance between 0.1-2.0 for accurate results within the linear range

• Typical amounts: 20-50 μg for western blots, 500-1000 μg for immunoprecipitation

• Volumes above 1000 μL indicate low protein concentration—consider concentrating your sample

• Standard BCA works for most applications (20-2000 μg/mL). Use Enhanced for dilute samples (5-250 μg/mL)

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