Curtain Fabric Calculator

Curtain style

Window width Centimeter(cm)

Window height Centimeter(cm)

Curtain width Centimeter(cm)

Curtain height Centimeter(cm)

Fullness 1.5–3×

Bolt width

Header height Centimeter(cm)

Bottom hem Centimeter(cm)

Cutting waste %

Sheer layer

Sheer fullness

Fabric price (¥/m) ¥/L

Sheer price (¥/m) ¥/L

Total fabric: -

Body fabric: -

Header fabric: -

Waste: -

Panels: -

Cut width: -

Cut height: -

Track length: -

Hooks: -

Sheer fabric: -

Sheer panels: -

Material cost -

Tips: -

Curtain Fabric Calculator

Estimate fabric like a home-textile worksheet: styles, separate window vs curtain sizes, fullness, bolt width, header/hem and waste. Shows total / body / header / waste, plus track, hooks and optional sheer.

How to use

Pick a style (flat / pleat / roman / rod / tie)—defaults for fullness and header update
Enter window size, then “Suggest from window” (about +25 cm each side, +20 cm height)
Set fullness (~1.5–3), bolt width (140/150/280/300 cm), header, hem and waste (5–15% typical)
Optionally enable a sheer layer for double curtains

Formulas

Cut width = curtain width × fullness
Panels = ceil(cut width ÷ bolt width)
Body = panels × (curtain height + hem) / 100 m
Header = panels × header height / 100 m (0 = none)
Waste = (body + header) × waste%; total = body + header + waste
Track ≈ window width + 30 cm; hooks ≈ cut width ÷ 10 cm

Save fabric

Wider bolt → fewer seams
Lower fullness → less fabric
Shorter header → less fabric

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