Download the AppFree Stitch Calculator for Crochet & Knitting Projects
The Yarnzy stitch calculator turns your gauge swatch into exact stitch and row counts for any project size. Works for crochet and knitting, in inches or centimeters.
Download Yarnzy on iOS & AndroidTip · Knit a 6″ swatch in the project's main stitch pattern, block it, then measure 4″ in the centre — edge stitches lie.
Round cast-on to a stitch multiple like "mult of 8 + 3"
Cast on
180
stitches
Work for
156
rows
Breakdown
Your inputs never leave this device.
See gauge become stitches.
A real example with real numbers. Knit a 4-inch swatch in worsted, count 18 stitches and 24 rows — then build a 40″ × 26″ scarf. Here's exactly how the math runs.
Gauge: 18 sts × 24 rows / 4″
Worsted weight, stockinette, blocked and measured from the centre.
Step 01 · Stitch density
How many stitches per inch?
Your swatch gives you density per inch — the bridge between any measurement and a stitch count.
Step 02 · Cast-on count
Multiply by the finished width.
Cast on 180 stitches for a 40-inch wide scarf at this gauge. The calculator rounds to the nearest whole stitch automatically.
Step 03 · Row total
Same logic, vertically.
Work 156 rows to reach a 26-inch length. Change your gauge and every number above shifts — try it live in the calculator at the top of this page.
How to Use the Stitch Calculator
Three simple steps take you from gauge swatch to exact cast-on numbers — no manual math needed.
01
Create and measure your gauge swatch
Make a small fabric sample using your yarn, hook, or needles. A 4–6 inch swatch gives reliable measurements. Block it first, let it dry completely, then measure the middle section — not the edges. Count stitches across the width and rows across the height, and note both numbers precisely.
02
Enter your gauge and project details
Open the Yarnzy stitch calculator and enter your swatch stitch count, swatch width, row count, and swatch height. Then add the finished width and height you want your project to reach. If you need yarn estimates too, plug those same dimensions into the yarn calculator right after.
03
Get your stitch plan and start making
The knitting stitch calculator instantly shows your total cast-on stitches for width and total rows for height. No manual math, no second-guessing your gauge. Write those numbers at the top of your pattern notes, pick up your needles or hook, and start making with confidence.
Frequently Asked Questions
Quick answers on gauge swatches, stitch math, and getting counts you can trust.
Enter your gauge swatch measurements — stitches across a known width and rows across a known height — then enter your target project dimensions. The calculator divides your swatch density by your target size and returns your exact cast-on stitch and row counts.
More tools from Skein.
A free toolkit for everything you measure, swatch, or substitute. No sign-up required.
Open tool →Yarn Substitution
You found the perfect pattern. Now find the yarn that actually works for it. Enter your yardage and weight and get the exact skein count before you buy anything.
Open tool →Hook & Needle Chart
US, UK, metric, all three systems in one place. Find your hook or needle size and see exactly which yarn weight it pairs with, no conversion guessing needed.
Open tool →Unit Conversion
Switch between meters, yards, grams, and ounces instantly. Whether your pattern is American or European, your measurements always make sense.
Open tool →Stitch Calculator
Know your gauge, know your finished width. Enter both and get the exact cast-on stitch count your project needs, no math, no margin for error.
Start Calculating Perfect Stitch Counts
The right stitch count — built from your gauge, your yarn, your tension — is the difference between a project that fits and one that gets frogged. Get your number in seconds, then jump to the yarn calculator and yarn price calculator to plan the rest.
Beginner friendly • Accurate gauge calculations • Works for crochet & knitting
Scan to Download the App
Start your next project with confidence