Is this Half Square Triangle Calculator free to use?

Yes, Half Square Triangle Calculator is 100% free to use online with no installation or account required.

How do I use the Half Square Triangle Calculator?

Simply enter your values into the required input fields and click calculate to view the results instantly.

Yes, the calculator is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

Half Square Triangle Calculator — Free Online Tool

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Calculate starting cut square sizes for 2-at-a-time Half Square Triangles

HST Formula (2-at-a-time): $\text{Cut Size} = \text{Finished Size} + 7/8\text{ inch}$. Enter your desired finished square size below.

HST Parameters Input

Desired Finished Size (Inches)

⚠️ Many quilters prefer to cut squares $7/8$ inch larger for precise trimming, or round up $1$ inch larger and trim down for absolute accuracy.

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