Gunning Fog Index
Calculate Gunning Fog Index instantly with the exact formula and a worked example.
Gunning Fog Index
Words
Sentences
Complex words
School grade
13
More about: Gunning Fog Index
What it calculates
The “Gunning Fog Index” calculator computes School grade from 3 parameters: words, sentences, complex words.
A study aid and exam-prep helper.
Example calculation
With parameters Words = 200, Sentences = 10, Complex words = 25 the result is 13.
How to use
- Enter words, sentences and complex words — each field above is adjustable with a slider.
- School grade 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.
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FAQ
How is Gunning Fog Index calculated?
The Gunning Fog Index calculator computes School grade from words, sentences, complex words. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Gunning Fog Index calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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