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Square in a Square Calculator

This calculator calculates all the key dimensions of a square in a square block given either the finished inside square length or the finished outside square length as a starting point. For example, suppose the length of the inside finished square is 5 inches. The calculator will determine that the outside finished square is 7 1/8 inches. It will also tell you that you will need to cut a square (the corner side square) with a side whose length is 4 3/8 inches. You will then cut that square along the diagonal to create 2 triangles that are pieced with the inside square. You will need to cut 2 such squares to create a total of 4 triangles so as to complete the outer square. Please note that this calculator assumes a 1/4 inch seam allowance and all calculated measurements are to the nearest 1/8 inch.

Choose a calculator Backing and Batting Diagonally Pieced Backing Binding Border Die Cut Letter Fabric Measurement Conversion Piece Count Pieces to Yardage Area Project Cost Sashing Set in and Corner Triangle Shape Slit N Sew Fabric Calculator Square in a Square Strip Width of Fabric Yardage Conversion Grip-LiteTM Side Clamps One of the best selling longarm/midarm side clamps on the market with over 20,000 sets sold! They're super lightweight, provide a secure 6-inch grip and are easily opened with one hand!

Select starting dimension Select the length Results Inside Square Finished Length      Inside Square Unfinished Length Outside Square Finished Length      Outside Square Unfinished Length      Corner Square Side Length 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 -- 1/8 1/4 3/8 1/2 5/8 3/4 7/8

This calculator is designed and copyrighted by Quilter's Paradise. It is available free to use strictly for non-commercial, personal purposes only. Quilter's Paradise makes no warranty or representation as to the calculator's quality, performance or accuracy, and, in no event, will be liable for any damages resulting from its use. When calculating the amount of fabric required, the calculators calculate what is needed given the information provided. The user of the calculator is responsibile for determining if they want to add additional "just in case" fabric to the calculation and, if so, how much. The user assumes the entire risk as to the calculator's quality, performance and accuracy.

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Web site last updated December 6, 2024 Copyright ©  2025  Quilter's Paradise.  All rights reserved. Please report any web site comments or problems via our Contact Us page.

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