📐 Pattern Scaling
Scale any sewing pattern up or down by percentage
About this calculator
The Pattern Scaling calculator enlarges or reduces a sewing or craft pattern proportionally. Enter the original measurement and the target size or scale percentage; it recalculates every dimension so the design keeps its proportions. It works for grading between sizes or scaling a motif up for a wall hanging.
Tip: scale in small steps and re-check fit at each stage — a pattern enlarged 200 percent in one jump often needs its curves redrawn, because straight scaling distorts ease and drape.