Catile Level and Grade Chart

Discover the comprehensive Catile level breakdown for each grade based on extensive research conducted with over 500k students in the United States grade chart.

We did research to find the Catile levels for each grade. The data is collected from students in the United States with a size of over 500 thousand samples. You can see the results in the table below.

The table shows the range of Catile levels suitable for a certain grade. As an example, for grade 5 students, texts with Catile levels between 795C and 1100C are suitable. You can also say a text with 900C is suitable for grade 5 and grade 6 students. 

Grade (US)
Age
Min. Catile Level
Max. Catile Level
1
6-7
5C
365C
2
7-8
245C
605C
3
8-9
480C
810C
4
9-10
700C
1005C
5
10-11
795C
1100C
6
11-12
875C
1180C
7
12-13
940C
1250C
8
13-14
1000C
1310C
9
14-15
1050C
1360C
10
15-16
1095C
1410C
11
16-17
1140C
1450C
12
17-18
1140C
1450C