DNA Calculator
Convert between ng/uL and molarity using DNA length
From NanoDrop Reading
From Known Concentration
Enter volume to calculate total amounts
Quick Reference
For NanoDrop Users
- dsDNA: 1 A260 unit is approximately 50 ng/uL
- Path length usually 1 cm (check your device)
- Include dilution factor if sample was diluted
- DNA length is critical for molarity calculations
General Notes
- Average MW per bp is approximately 650 g/mol (dsDNA)
- 1 uM = 1000 nM
- Copy number = moles x 6.022 x 10^23
- Always specify DNA length for accurate calculations