About These Calculators
Sewing calculators for quilters, seamstresses, and knitters. Estimate yardage, calculate binding strips, and plan your projects with precision.
Sewing & Quilting Calculators
16 toolsYarn Yardage Calculator
Estimate how much yarn you need for any knitting or crochet project
Fabric Yardage Calculator
Calculate exactly how much fabric you need for any sewing project
Quilt Backing Calculator
Calculate backing fabric and batting for any quilt size
Quilt Binding Calculator
Calculate binding strip length and fabric needed for any quilt size
Fabric Yardage Estimator
Estimate fabric yardage needed for common projects
Elastic Calculator
Calculate elastic length for waistbands and cuffs
Pattern Scaling Calculator
Scale sewing patterns up or down between sizes
Thread Consumption Calculator
Estimate thread needed per seam type and length
Curtain Fabric Calculator
Calculate fabric needed for curtains by window size
Seam Allowance Calculator
Calculate pattern piece dimensions with seam allowances for any sewing project
Fabric Shrinkage Calculator
Calculate extra fabric needed to account for shrinkage
Quilt Binding Yardage Calculator
Calculate binding strip length for your quilt
Elastic Length Calculator
Calculate elastic needed for waistbands and cuffs
Seam Allowance Total Calculator
Calculate total fabric needed including seam allowances
Zipper Length Calculator
Determine the right zipper length for your project
Interfacing Yardage Calculator
Calculate interfacing needed for garment construction
Frequently Asked Questions
Are these sewing & quilting calculators free?
Yes, all 16 calculators are completely free with no signup required. They run entirely in your browser — no data is sent to any server.
How accurate are these calculators?
Our calculators use industry-standard formulas and are regularly updated. However, they provide estimates — always verify critical calculations with a professional in the relevant field.
Can I use these calculators on my phone?
Yes, all calculators are mobile-responsive and work on any device with a web browser. No app download needed.
Do you save my calculations?
No. All calculations happen in your browser. We don't store any of your inputs or results. Your data stays on your device.
Can I embed these calculators on my website?
Select calculators offer embed codes that you can copy and paste into your website or blog. Look for the "Embed This Calculator" section on individual tool pages.