Calculate the total number of DNA molecules (copies) in your sample based on mass and sequence length.
Sample Parameters
bp
Copy Number Detection
3.0415× 1010
Total DNA Molecules
Copies/µL3.04e+10
Mass/Molecule3.29e-18g
Overview
This tool calculates the number of DNA molecules (copies) in a sample. It is essential for preparing qPCR standard curves or determining multiplicities of infection (MOI).
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Pro Tips
Commonly used to calculate the amount of template needed for standard curves (e.g., 10⁶ copies/µL).
Ensure accurate DNA quantification using fluorometric methods (e.g., Qubit) rather than spectrophotometry for low concentrations.
Length should include the entire plasmid or genome size being analyzed.
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Fun Facts
"The average molecular weight of a double-stranded DNA base pair is approximately 660 g/mol."
"Avogadro's constant (6.022 × 10²³) represents the number of molecules in one mole of substance."
"1 ng of a 3000 bp plasmid contains roughly 3.1 × 10⁸ copies of that plasmid."
"The human genome is approximately 3.2 billion base pairs long."
"Viral loads are often reported in copies per mL of plasma."
"High copy number plasmids can replicate to hundreds of copies per cell."
