SeeMyQuilt
Free calculator · Fabric & precuts

Fat quarter calculator

A fat quarter is about 18" × 21". Enter a piece size to see how many you get from one, and how many fat quarters you need.

Per fat quarter12 pieces
  • You need 4 fat quarters for 42 pieces

What one fat quarter yields

CutPieces per fat quarter
2 1/2" × 2 1/2"56
3" × 3"42
3 1/2" × 3 1/2"30
4" × 4"20
4 1/2" × 4 1/2"16
5" × 5"12
6 1/2" × 6 1/2"6
10" × 10"2
2 1/2" × 21"7

How it is calculated

A fat quarter is a half yard cut in half across its width, giving a piece about 18" × 21" instead of the long thin 9" × 42" of a regular quarter yard.

The calculator allows 18" × 21" of usable fabric and tries the piece in both directions.

Questions

How many fat quarters make a quilt?

About 12 fat quarters make a lap quilt top and about 20 make a twin, depending on the pattern.

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