布地計算機 – 必要な布の量は何ヤード？
衣服、キルト、カーテンなど、あらゆるプロジェクトに必要な布の正確な量を計算します。
よくある質問
How many yards of fabric do I need for a dress?
A simple A-line or shift dress typically requires 2–3 yards of 44" wide fabric. A full skirt or formal gown can require 4–6 yards. Always check the pattern envelope — it lists required yardage for each size and fabric width.
What is the difference between a yard and a meter of fabric?
1 yard = 36 inches = 0.9144 meters. Most US patterns use yards; European patterns use meters. To convert: multiply yards by 0.9144 for meters, or divide meters by 0.9144 for yards.
How much extra fabric should I buy for mistakes?
Beginners should add 15–20% extra to account for cutting errors, mismeasurements, and learning. Experienced sewers typically add 10%. For patterned fabrics, add extra for pattern matching as described above.
Can I calculate fabric needs without a commercial pattern?
Yes — measure the finished dimensions of each piece, add seam allowances (typically 5/8" for garments, 1/2" for quilts), arrange pieces on the fabric width mentally or on paper, and calculate total length. Add 10–15% for waste.