Craft Calculators
Free cross stitch fabric estimators, quilt binding & backing yardage tools, resin mixing ratio calculators, and candle wax volume helpers. Trusted by makers, quilters, and DIY crafters. Instant, accurate, no sign‑up.
Craft Calculators
Cross Stitch Calculator
Find the fabric size you need for your pattern.
Quilt Binding Calculator
Calculate exactly how much binding fabric you need.
Quilt Backing Calculator
Determine yardage for quilt backing and batting.
Resin Calculator
Mix the perfect resin‑to‑hardener ratio every time.
Candle Wax Calculator
Work out wax weight for containers or molds.
All 5 available craft calculators – more coming soon.
Featured: Cross Stitch Fabric Calculator
Try an interactive preview. Enter your stitch count and fabric type to see the required fabric size.
Cross Stitch Fabric Estimator
Our Cross Stitch Calculator uses the standard formula: (Stitch Count ÷ Fabric Count) + Border Allowance. Get the exact inches you need for your project, then head to the full tool for centimetres and multiple borders.
Open Full Cross Stitch Calculator →Related Craft Tools
Key Craft Formulas
The math behind your favourite projects.
Cross Stitch Fabric Size
Fabric Width (inches) = (Stitch Width ÷ Fabric Count) + (2 × Border)
Fabric Height (inches) = (Stitch Height ÷ Fabric Count) + (2 × Border)
Fabric count is the number of stitches per inch (e.g., 14‑count Aida gives 14 stitches/inch). A border of 2‑3 inches is standard for framing.
Quilt Binding Yardage
Binding Length = (2 × (Quilt Width + Quilt Length)) + 15 inches
Number of Strips = Binding Length ÷ Width of Fabric (WOF)
Total Yardage = (Number of Strips × Binding Width) ÷ 36
The extra 15 inches accounts for corners and joining. Binding width is typically 2.5 inches. WOF is usually 42 inches.
Resin Mixing Ratio
Part A (Resin) = Total Volume × (Ratio_A ÷ (Ratio_A + Ratio_B))
Part B (Hardener) = Total Volume × (Ratio_B ÷ (Ratio_A + Ratio_B))
For a 2:1 ratio, Part A = 2/3 of total, Part B = 1/3. Always follow manufacturer instructions for your epoxy system.
About NumbrWiz Craft Calculators
NumbrWiz craft calculators are built for quilters, cross‑stitchers, resin artists, candle makers, and DIY enthusiasts who need fast, reliable measurements. All tools run directly in your browser — no downloads, no sign‑up, just instant answers.
Editorial Standards
Every craft calculator is reviewed by the NumbrWiz Editorial Team before publication:
- Formula verification against established crafting standards, quilting guides, and manufacturer recommendations
- Real‑world testing with sample project data to confirm outputs match actual material requirements
- Peer review by experienced crafters who use these tools in their daily making
- Regular updates when new techniques or material standards emerge
Who Uses These Calculators
- Cross‑stitchers planning fabric purchases and framing margins
- Quilters calculating binding and backing yardage before cutting
- Resin artists measuring precise epoxy ratios for jewellery, art, and coatings
- Candle makers determining wax weight for container candles or pillar moulds
- Craft teachers & workshop leaders preparing material lists for classes
Mobile Usability
All NumbrWiz craft calculators are fully responsive. Whether you’re standing in a fabric shop checking yardage on your phone, or mixing resin in the studio with a tablet nearby, every tool adapts seamlessly. Large touch targets, clear readouts, and instant client‑side calculation make them workshop‑friendly.
Accuracy Commitment
We document every formula transparently. If a calculation doesn’t look right, please contact us — the NumbrWiz Editorial Team reviews accuracy reports promptly and issues corrections when needed.