Bolt End Calculator — Is This Remnant Enough?

A bolt end (or remnant) is the last piece of fabric left on a bolt. Shops often sell these at a discount (typically 20–50% off) because they cannot guarantee a specific length. They are great value if the piece is large enough for your project.

Ask the shop to measure the length, or measure it yourself along the selvedge edge. The width is the standard bolt width printed on the label. Bolt ends may have uneven cut edges, so measure the usable length (the shortest selvedge-to-selvedge distance).

Area alone is not sufficient — your pattern pieces must physically fit on the fabric. A very short but wide piece may have enough area but not enough length for tall pieces like trouser legs or dress fronts. Enter your longest pattern piece length and the calculator checks it physically fits the usable bolt — either running down the length or laid across the width.

By area, yes — a wider bolt holds more fabric per metre, so the length needed drops in proportion. But area is only part of the picture. If your bolt is narrower than the width your pattern assumes, large pieces such as trouser legs or a full skirt panel may not physically re-nest into the narrower width no matter how much total area there is. Treat the width adjustment as an area-equivalence estimate and always confirm your longest and widest single piece fits the actual bolt width.