How to Use the DNA to RNA Converter
Step 1: Type or paste your DNA sequence in the input box above. The sequence should be written in the 5' to 3' direction.
Step 2: The tool accepts only valid DNA bases: A (Adenine), T (Thymine), G (Guanine), C (Cytosine). All spaces, numbers and other characters are automatically removed.
Step 3: Click the Convert to RNA button. Your mRNA sequence will appear instantly with the uracil bases highlighted.
Step 4: Use the Copy button to copy your result for use in other applications.
How DNA to RNA Conversion Works
DNA transcription is the process by which the genetic information in a DNA strand is copied into a messenger RNA (mRNA) molecule. This is the first step of gene expression.
A (Adenine) → A (Adenine)
T (Thymine) → U (Uracil) ← only change
G (Guanine) → G (Guanine)
C (Cytosine) → C (Cytosine)
The only difference between DNA and RNA sequences is that RNA uses Uracil (U) instead of Thymine (T). All other bases remain the same.
Worked Example
Important Notes
This tool converts the coding strand of DNA (non-template strand) directly to mRNA. In actual transcription, RNA polymerase reads the template strand (3'→5') and synthesizes mRNA in the 5'→3' direction, producing the same sequence as the coding strand but with U replacing T.