Chemistry topic
Biochemistry
Calculate biomolecule precursors, fragments, modifications, and polymers.
Calculators
RNA Molecular Weight CalculatorCalculate RNA molecular weight from a sequence or length. Choose the 5' end and get the formula, g/mol, and picomoles per microgram.DNA Molecular Weight CalculatorCalculate DNA molecular weight for an oligo, PCR product, or plasmid. Enter a sequence or length and get g/mol, GC content, and picomoles per microgram.Protein Molecular Weight CalculatorCalculate protein or peptide molecular weight from a one-letter sequence. Get g/mol, kDa, monoisotopic mass, formula, and the extinction coefficient at 280 nm.
Core relationships
These equations form an accessible map of the quantities used across this topic.
- M(sequence) = Σ residue masses + terminal groups