ADC Properties

The DAR Calculator computes drug-to-antibody ratio, total conjugate mass, and key physicochemical properties for antibody–drug conjugate design. Enter antibody sequence, payload (SMILES or mass in Da), optional linker (SMILES), and DAR to get total mass, antibody mass, payload/linker mass, charge, and pI; download a PDF report for lab or publication.

Research use only.

Antibody & payload

Antibody sequence

Payload (SMILES)Or payload mass (Da)

Linker (SMILES, optional)

DAR (target average)Conjugation method

Payload preset (optional, for ε & LogP)

Linker Library · Conjugation Efficiency · ADC 3D Structure · Report Export · ADC Formats · Approved ADCs