Cushion & Soft Furnishing Tools
Free, practical calculators for cushions and throw pillows — size an insert, estimate fill and foam, plan a pillow arrangement, work out fabric yardage, and budget the cost. Planning estimates only.
Cushion Insert Size Calculator
Find the insert size that makes a cover look full and plump — sized 1–2 inches larger than the finished cover, with the nearest standard square and lumbar sizes
Cushion Fill Calculator
Estimate how much polyester fiberfill to buy from your cushion size, loft, and firmness — in ounces and pounds, using a stated fiberfill density
Throw Pillow Arrangement Planner
Get a recommended pillow count, sizes, and a concrete symmetric or asymmetric layout for a sofa, loveseat, sectional, or bed, built on designer pairs-plus-a-lumbar rules
Fabric Yardage Calculator
Work out the yards of fabric to sew your covers from the cushion size, seam allowance, quantity, fabric width, pattern repeat, and cover style — rounded up to the quarter yard
Cushion Foam Calculator
Size foam for seat, back, and outdoor cushions in board feet and cubic feet, with a recommended firmness (ILD) and density for each use
Cushion Cost Calculator
Estimate the per-cushion and total cost of making or buying cushions from fabric, insert or foam, notions, and optional labor — with a clear line-item breakdown