Pattern Scaling Calculator
Calculate new dimensions when scaling sewing patterns
About this calculator
The Pattern Scaling Calculator helps sewers and designers resize sewing patterns to different sizes or measurements. Whether you need to adjust a pattern for a different age group, body size, or project scale, this tool calculates the exact proportional dimensions needed. It's essential for pattern makers, tailors, and crafters who want to modify existing patterns while maintaining proper fit and proportions across all pattern pieces.
How to use
Enter your original pattern dimensions and specify your desired scaling percentage or target measurement. The calculator will automatically compute the new dimensions for all pattern pieces, maintaining proportional relationships. Use these scaled measurements to redraw your pattern pieces accurately.
Frequently asked questions
Can I scale patterns up and down with this calculator?
Yes, you can scale patterns both larger and smaller by entering percentages above or below 100%.
Will scaling maintain the pattern's fit and proportions?
The calculator maintains mathematical proportions, but fit may need adjustments for significant size changes in garment patterns.
What's the maximum scaling percentage I can use?
While there's no technical limit, scaling beyond 50-200% may require additional fit adjustments for garment patterns.