Knitting Calculator
Free knitting calculator for yarn estimation, pattern resizing, and gauge conversion. Calculate how much yarn you need, resize patterns to different measurements, and convert gauge between imperial and metric systems.
Gauge Information
Enter your gauge from your swatch (standard is 4 inches or 10 cm)
Project Dimensions
Yarn Estimation
Related Calculators
You might also find these calculators useful
Calculate Your Knitting Project Needs
Planning a knitting project? Our free knitting calculator helps you estimate yarn requirements, resize patterns to your measurements, and convert gauge between imperial and metric systems. Whether you're a beginner or experienced knitter, get accurate calculations for your next project.
What Is a Knitting Calculator?
A knitting calculator is a tool that helps knitters with essential project calculations. It can estimate how much yarn you need for a project based on gauge and dimensions, resize existing patterns to different measurements, and convert gauge between measurement systems. Gauge (or tension) is the number of stitches and rows per unit of measurement—typically per 4 inches or 10 cm.
Yarn Estimation Formula
Yarn = Total Stitches × Total Rows × Yards per StitchWhy Use Our Knitting Calculator?
Accurate Yarn Estimates
Calculate exactly how much yarn you need based on your gauge and project dimensions, avoiding running out mid-project.
Easy Pattern Resizing
Resize any pattern to fit your measurements by entering your gauge and desired dimensions.
Unit Conversion
Seamlessly convert between imperial (inches) and metric (centimeters) for international patterns.
Yarn Weight Support
Built-in support for all standard yarn weights from Lace (0) to Jumbo (7) per Craft Yarn Council standards.
How to Use the Knitting Calculator
Who Uses This Calculator?
Beginner Knitters
Get help estimating yarn needs and understanding gauge before starting your first projects.
Pattern Designers
Calculate stitch counts for different sizes and estimate yarn requirements for your patterns.
Yarn Shoppers
Know exactly how many skeins to buy before heading to the yarn store.
International Knitters
Convert gauge between imperial and metric when using patterns from different countries.
Frequently Asked Questions
Gauge (or tension) is the number of stitches and rows per unit of measurement, typically measured over a 4-inch (10 cm) square swatch. It determines the finished size of your project and varies based on yarn weight, needle size, and your personal knitting tension.