Curtain Fabric Calculator
Works out how much fabric a pair of curtains takes.
Fabric to buy
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Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
Fabric widths —
Each cut length —
Widths per curtain, for a pair —
The formula
widths = ⌈pole width × fullness ÷ fabric width⌉ cut = drop + hems, rounded up to whole repeats
Fabric is sold by length, and joined side by side, so whole widths are needed.
What to watch out for
Buy all of it from one roll, and check the batch.
Frequently Asked Questions
How much fabric do I need for curtains?
For a 2 m pole, 2.2 m drop, double fullness and 140 cm fabric: 3 widths of 2.5 m, so 7.5 m.