Pattern scaling, seam allowance, darts, ease, grading, circle skirts, and gathering calculators.
Scale pattern pieces up or down by a percentage to resize patterns between sizes.
Calculate adjusted cut dimensions by adding seam allowances to your pattern pieces.
Calculate dart width and length for bust or waist fitting based on body measurements.
Calculate the wearing ease and design ease to add to body measurements for comfortable garment fit.
Calculate grading increments to resize a pattern between standard sizes.
Calculate the waist radius and fabric needed for full, half, and quarter circle skirts.
Calculate how much fabric width you need for gathering to achieve your desired fullness.