Curtain Calculator
Calculate curtain dimensions, number of panels, and fabric needed for your windows.
Window Measurements
Inside frame measurement
Inside frame measurement
Standard panels are 52-54 inches wide
Panels Needed
3
100" length each
Rod Width
64"
Recommended Rod
72"
Curtain Length
100"
Total Fabric Width
128"
Specifications
Fullness Multiplier2x
Length StyleTo floor (1/2" clearance)
Fabric Per Panel108" (with hems)
Total Fabric9.0 yards
Tips
- Mount rods 4-6" above window frame
- Extend rods 3-6" beyond each side
- 2x fullness is most common
- Floor length curtains should clear by 1/2"
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.