Curtain Fullness Calculator
Pick a heading and fullness, enter your track width and fabric roll width — get the flat fabric width and the number of widths you need to join, plus an estimate of total metres. The single-purpose companion to the cost calculator.
Your window
At 2× fullness, a 1.52m track wants 3.05 m of flat cloth — 3 widths of 1.4m fabric joined together. Common roll widths are 54" (≈1.37m) and wide-width 2.8–3m railroaded fabric.
Flat fabric width
0.00 m
0 fabric widths · ≈ 8.52 m total
Widths needed
3
of 1.4m cloth
Fabric metres
8.52 m
incl. 0.4m hem / drop
Fullness
2×
Pencil
Per panel
2 widths
each of two panels
Flat fabric is 2× the window — that gathered surplus is what makes the folds.
Read before you buy: this gives the bare cloth width and widths to join. Add extra for the pattern repeat (large repeats can need a full extra width), and confirm hem and heading allowances with your tailor (0.3–0.5m per drop is typical). Fabric roll widths vary — 54" is common in India, but wide-width / railroaded goods change the width count entirely. When in doubt, round up.
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