Crochet Foundation Chain Calculator
Fill in the values and the answer updates as you type.
How the Crochet Foundation Chain Calculator works
Stitches across = width × stitches per inch, rounded to a multiple of the pattern repeat, plus any extra stitches the pattern needs. Foundation chain = stitches + turning chains. Chain loosely, or use a larger hook for the chain, so the bottom edge does not pull in. Example: with Stitches per inch 3.5, Finished width 40 in, and Pattern stitch multiple 2, the result is Stitches across each row = 141; Foundation chain length = 143; Width at your gauge (in) = 40.3.
Inputs and results
The Crochet Foundation Chain Calculator takes 5 inputs and gives 3 results.
What you enter
- Stitches per inch — starts at 3.5.
- Finished width (in) — starts at 40.
- Pattern stitch multiple — starts at 2.
- Extra stitches in pattern — starts at 1.
- Turning chains — starts at 2.
What you get
- Stitches across each row
- Foundation chain length
- Width at your gauge (in)
Example: Crochet Foundation Chain Calculator with the starting values
With stitches per inch 3.5, finished width 40 in, pattern stitch multiple 2, extra stitches in pattern 1 and turning chains 2, the calculator returns:
| Stitches across each row | 141 |
|---|---|
| Foundation chain length | 143 |
| Width at your gauge (in) | 40.3 |
Change any value above and the results update straight away.
Crochet Foundation Chain Calculator FAQ
How do I use the Crochet Foundation Chain Calculator?
Enter stitches per inch, finished width, pattern stitch multiple and extra stitches in pattern in the fields, then read stitches across each row, foundation chain length and width at your gauge (in) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Crochet Foundation Chain Calculator calculate?
Chain length for a target width, pattern multiple, and turning chains. It returns stitches across each row, foundation chain length and width at your gauge (in) from the 5 values you provide.
What values does the Crochet Foundation Chain Calculator start with?
It opens with stitches per inch 3.5, finished width 40 in, pattern stitch multiple 2 and extra stitches in pattern 1 so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Crochet Foundation Chain Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Crochet Foundation Chain Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.