Calculations based on 45" wide material, 44" after removing selvedge edges

Squares Per Yard  ( 42" x 36")
1" = 1584 5" = 56 9" = 16
1-1/2" = 696 5-1/2" = 48 9-1/2" = 12
1-7/8" = 437 5-7/8" = 42 9-7/8" = 12
2" = 396 6" = 42 10" = 12
2-1/2" = 238 6-1/2" = 30 10-1/2" = 12
2-7/8" = 180 6-7/8" = 30 10-7/8" = 12
3" = 168 7" = 35 11" = 12
3-1/2" = 120 7-1/2" = 20 11-1/2" = 9
3-7/8" = 99 7-7/8" = 20 11-7/8" = 9
4" = 99 8" = 20 12" = 9
4-1/2" = 72 8-1/2" = 20 12-1/2" = 6
4-7/8" = 63 8-7/8" = 16 12-7/8" = 6

Squares Per Fat Quarter ( 18" x 22")
2" = 99 4" = 20 6" = 9
2-1/2" = 56 2-7/8" = 42 4-1/2" = 16 4-7/8" = 12 6-1/2" = 6 6-7/8" = 6
3" = 42 5" = 12
3-1/2" = 30 3-7/8" = 20 5-1/2" = 12 5-7/8" = 9

 Diagonal Block Measurements 

To figure any other finished diagonal measurements just multiply the block size by x 1.41

Finished Block Size

 Diagonal Measurement Decimal Equivalent
4"  5-5/8" 5.625"
5" 7-1/8" 7.125"
6"  8-1/2" 8.5
7" 9-7/8" 9.875
8"  11 3/8"   11.375"
9"  12 3/4"  12.75"
10" 14 1/8" 14.125"
12"  17"  17.0"
14" 19-3/4" 19.75"

 

 June 17 2002  Marcia Hohn