Useful Protein Molecular Weight Calculator kDa

Nov 10. 2015

Protein molecular weight calculator kDa
The rule of thumb for conversion of microgram amounts into picomole amounts at different protein molecular weights and peptide molecular weights is:

1000/Mw of protein in kDa = pmol/ug

You can use the table below for a quick conversion of your protein, depending on its size:

Protein size kDa Microgram Picomole Microgram Picomole
1 1 1000 1 1000
10 10 1000 1 100
20 20 1000 1 50
50 50 1000 1 20
100 100 1000 1 10
150 150 1000 1 6.7

In other situations you may want to learn more about the properties of your protein. In those cases, the GPMAW lite tool will come in handy. It is free and easy to use:

Try GPMAW lite – free bioinformatics tool

Protein molecular weight calculator

Useful Links and Protein Molecular Weight Calculator

Use the free tool to calculate the basic properties of your protein:

Free protein bioinformatics tool GPMAW lite

Compute the pI/Mw tool from an protein amino acid sequence or a database accession number:

Find out how to perform protein MW determination by mass spectrometry:

Molecular Weight Determination

Learn more in about how to make simple bioinformatics calculations on specific protein sequences in this blog post.

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