Sewing & Craft Calculators

15 free sewing, knitting, crochet, and quilting calculators for fabric yardage, yarn, gauge, and patterns. No signup required.

15 free tools

Fabric Yardage Calculator

Garment type and size to yardage of fabric needed. Supports 45" and 60" fabric widths.

Quilting Fabric Calculator

Quilt size and block size to number of blocks and fabric yardage for top, backing, and binding.

Knitting Gauge Calculator

Your gauge vs pattern gauge to adjusted stitch and row counts. Includes needle size advice.

Yarn Yardage Estimator

Project type and size to estimated yards of yarn needed. Adjusts for yarn weight.

Circle Skirt Calculator

Fabric cutting dimensions for circle skirts from waist measurement. Full, half, and quarter circle.

Cross Stitch Size Calculator

Pattern stitch count and fabric count to finished dimensions and fabric size to buy.

Crochet Gauge Calculator

Your crochet gauge vs pattern gauge to adjusted stitch and row counts. Includes hook size advice.

Pattern Size Scaler

Scale a sewing or craft pattern from one size to another. All measurements scale proportionally.

Seam Allowance Calculator

Add seam allowances to pattern measurements. Supports standard, French, serged, and custom allowances.

Hem Calculator

Desired length and hem depth to cut length. Supports single fold, double fold, blind, and rolled hems.

Elastic Length Calculator

Body measurement and elastic type to elastic cut length. Supports woven, braided, and knit elastic.

Bias Tape Calculator

How much continuous bias tape you can cut from a square of fabric.

Dye Calculator

Fabric weight to dye and water ratio for Rit, fiber reactive, and acid dyes.

Curtain Size Calculator

Curtain panel dimensions from window measurements. Adjusts for fullness, panels, rod pocket, and hem.

Zipper Length Guide

Garment type and size to recommended zipper length and type.