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By Robert Kaufman Fabrics

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Robert Kaufman Fabrics and Quilter's Paradise have joined forces to bring you a collection of eight essential quilting calculators.

With these calculators you'll be able to quickly convert between yards and inches, meters and centimeters; learn how much fabric you need for backing, batting and borders; and determine how many rectangular pieces can be cut from a larger piece. There are even calculators for square-in-a-square, set-in and corner triangles.

Here's a brief description of each calculator:

Fabric Measurement Converter: Converts between inches and yards in decimal form, and yards in fractional form. (With metric equivalents.)
Backing and Batting Calculator: Determines how much material from a bolt of fabric is needed to make the backing for a quilt.
Piece Count Calculator: Shows the number of fixed-sized pieces of fabric that can be cut from a larger piece.
Pieces to Area Calculator: Indicates how much fabric is needed in order to cut a given number of fixed-sized pieces.
Binding Calculator: Tells you the amount of fabric required to bind your quilt, based on the quilt’s dimensions and the binding strip width.

Border Calculator: Shows the amount of fabric required to create borders, based on a quilt’s dimensions and the width of the borders.

Square-in-a-Square Calculator: Works out the key dimensions of a square-in-a-square block.

Set-in and Corner Triangle Calculator: Determines the size of the square piece you’ll need to cut in order to create both unfinished set-in triangles and unfinished corner triangles.

What's New in Version 2.3

We placed "Calculate" button back on each calculator (as oppose to just calculating inputs automatically). Also all instructions how to use each calculator are back on each calculator screen.


iPhone Screenshot 1
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iPad Screenshot 1
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iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5

Customer Reviews

Great app

I am new to quilting. This app has been great so far. The only item I wish it had would be a calculation for blanket size. Ex. How many 12 x 12 squares in a baby quilt or cal. King. Every sight I look at has a slightly different opinion on this and a chart and reasons would be nice. Thanks

Calculations off

The calculations for backing fabric are not functioning properly. Every time I put 108" width for my backing fabric the app tells me to buy twice as much fabric as needed. Luckily, as a new quilter, my local quilt shop asked me some questions and stopped me from buying way too much fabric. I showed the app to them and they tried it and also got wrong numbers.


This is a phenomenal app! I do all my own quilt designs. Once I know how many of each size, I just enter the info into the app and it calculates my yardage. I use it all the time and it’s always been dead on accurate. I. LOVE. IT!

View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Utilities
  • Updated:
  • Version: 2.3
  • Size: 21.1 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 5.1.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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