Finding the Diagonal of a Square
(C)2002 Karen Combs Studio
www.karencombs.com
Use this chart when you want to set a square “on-point.”
NOTE: If you use the finished size of the square, the chart will give you the finished size of the diagonal. If you use the unfinished size of the square, the chart gives you the measurement including the seam allowances.
|
Square Size |
|
Diagonal |
|
|
|
|
|
|
|
1" |
|
|
1 3/8" |
|
1 1/2" |
|
|
2 1/8" |
|
2" |
|
|
2 7/8" |
|
2 1/2" |
|
|
3 1/2" |
|
3" |
|
|
4 1/4" |
|
3 1/2" |
|
|
5" |
|
4" |
|
|
5 5/8" |
|
4 1/2" |
|
|
6 3/8" |
|
5" |
|
|
7 1/8" |
|
5 1/2" |
|
|
7 3/4" |
|
6" |
|
|
8 1/2" |
|
6 1/2" |
|
|
9 1/4" |
|
7" |
|
|
9 7/8" |
|
7 1/2" |
|
|
10 5/8" |
|
8" |
|
|
11 3/8" |
|
8 1/2" |
|
|
12" |
|
9" |
|
|
12 3/4" |
|
9 1/2" |
|
|
13 3/8" |
|
10" |
|
|
14 1/8" |
|
10 1/2" |
|
|
14 7/8" |
|
11" |
|
|
15 1/2" |
|
11 1/2" |
|
|
16 1/4" |
|
12" |
|
|
17" |
|
12 1/2" |
|
|
17 5/8" |
|
13" |
|
|
18 3/8" |
|
13 1/2" |
|
|
19 1/8" |
|
14" |
|
|
19 3/4" |
|
14 1/2" |
|
|
20 1/2" |
|
15" |
|
|
21 1/4" |
|
15 1/2" |
|
|
21 7/8" |
|
16" |
|
|
22 5/8" |
|
16 1/2" |
|
|
23 3/8" |
|
17" |
|
|
24" |
|
17 1/2" |
|
|
24 3/4" |
|
18" |
|
|
25 1/2" |
karen combs, quilter, teacher, author, designer, books of illusion, 3-D Karen Combs, Quilter, Teacher, Author, Designer, Books of Illusion, 3-D quilter, teacher, author, designer, books of illusion, 3-D, Karen Combs, quilter, teacher, author, designer, books of illusion, 3-D, Karen Combs, Author, Designer, Teacher, travels through the country teaching and lecturing on the topics of quilting and design. Specifically on the topic of quilts of illusion and how to make a traditional quilt take on a three diminensional appearance. Karen Combs, Author, Designer, Teacher, travels through the country teaching and lecturing on the topics of quilting and design. Specifically on the topic of quilts of illusion and how to make a traditional quilt take on a three diminensional appearance. |