GC Content
Calculate GC Content instantly with the exact formula and a worked example.
GC Content
Adenine (A)
Thymine (T)
Guanine (G)
Cytosine (C)
GC content
50%
AT content
50%
Length
100nt
Melting temperature Tm
78.7°C
More about: GC Content
What it calculates
The “GC Content” calculator computes GC content in % from 4 parameters: adenine (a), thymine (t), guanine (g), cytosine (c).
A lab calculation in biology and molecular biology.
Example calculation
With parameters Adenine (A) = 25, Thymine (T) = 25, Guanine (G) = 25, Cytosine (C) = 25 the result is 50 %.
How to use
- Enter adenine (a), thymine (t), guanine (g) and cytosine (c) — each field above is adjustable with a slider.
- GC content (%) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
Related calculators
FAQ
How is GC Content calculated?
The GC Content calculator computes GC content (in %) from adenine (a), thymine (t), guanine (g), cytosine (c). Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the GC Content calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
More calculators in this category
Explore related free tools