How to use the reverse complement calculator
Generate the reverse complement and RNA transcript of a DNA sequence. Enter dna sequence in the field above; the reverse complement, mrna transcript, length are computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- seq — DNA sequence
Worked example
With dna sequence = ATGCGTACGTTAGC, the calculator gives reverse complement ≈ GCTAACGTACGCAT; mrna transcript ≈ AUGCGUACGUUAGC; length ≈ 14 bases.
Frequently asked questions
What is the formula for the reverse complement calculation?
Reverse complement = revcomp(seq). mRNA transcript = transcribe(seq). Length (bases) = clean(seq).length. Here seq is dna sequence.
What inputs do I need for the reverse complement calculator?
You need dna sequence. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.