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

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


Useful Links

Free protein bioinformatics tool GPMAW lite
Compute pI/Mw tool from protein amino acid sequence or database accession number:
Protein MW determination by mass spectrometry:

Molecular Weight Determination

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