Protein Mass / Moles / MW Converter
This tool calculates protein mass, moles, or molecular weight.
Users can enter any two of the three parameters—mass, moles, and molecular weight—to compute the remaining one.
What is Protein Molar Conversion?
In molecular biology and biochemistry, researchers often need to convert between the mass of a protein (typically in micrograms, µg), its molar amount (typically in picomoles, pmol), and its molecular weight (in kiloDaltons, kDa).
Why is this important?
Accurate calculations are critical for:
- Western Blotting: Loading equal molar amounts of protein to compare expression levels.
- Enzyme Kinetics: Determining the precise molar concentration of enzymes.
- Protein Labeling: Calculating the correct stoichiometry for labeling reactions.
The Formula
The relationship is governed by the following formula:
Mass (g) = Moles (mol) × Molecular Weight (g/mol)
Where 1 kDa = 1,000 g/mol. Our calculator handles all the unit conversions (µg to g, pmol to mol) automatically, saving you time and preventing calculation errors.
Key Features
- Bi-directional Conversion: Enter any two values to calculate the third.
- Common Protein Presets: Quickly select from a list of standard protein standards.
- Clean Interface: Designed for clarity and ease of use in the lab.
- Offline Capable: Perform calculations anytime, anywhere without an internet connection.
Preview
