Table 1

Readability scores with equivalent age, English and US school grades18 35

Age	US grade level	English school equivalent	Flesh-Kincaid Grade Level	Gunning-Fog Index Score	Flesh Reading Ease Score
6–7	1	Year 2	1	1
7–8	2	Year 3	2	2
8–9	3	Year 4	3	3
9–10	4	Year 5	4	4
10–11	5	Year 6	5	5	90–100
11–12	6	Year 7	6	6	80–90
12–13	7	Year 8	7	7	70–80
13–14	8	Year 9	8	8	60–70
14–15	9	GCSE	9	9	60–70
15–16	10	GCSE	10	10	50–60
16–17	11	A Levels	11	11	50–60
17–18	12	A Levels	12	12	30–50
	University (years 1–3)		13–15	13–15
	University (year 4)		16	16
	Postgraduate		17–18	17–20	0–30
	Postgraduate plus			>20	0–30

GCSE, General Certificate of General Education.