Curtain Size Calculator
Calculate the perfect curtain length and width for any window style and fullness
Calculate Curtain Dimensions
Measure from top of window frame to desired endpoint
Measure from left to right edge of window frame
Standard: 4 in, High ceiling: 6 in
Measurement Guidelines
Example Calculation
Floor-Length Curtains Example
Window height: 72 inches (183 cm)
Window width: 48 inches (122 cm)
Rod height: 4 inches (10 cm) above window
Style: Floor length
Fullness: Standard (2x width)
Calculation Results
Curtain length: 72" + 4" = 76" (193 cm)
Curtain width: 48" × 2 = 96" (244 cm)
Purchase curtains: 76" × 96" (193cm × 244cm)
Curtain Style Guide
Sill Length
Ends at window sill
Good for kitchens, bathrooms
Apron Length
Ends at frame bottom
Covers window trim
Café Length
Covers half window
Allows privacy & light
Floor Length
Just touches floor
Most popular choice
Extra Long
Pools on floor
Luxurious, elegant look
Standard Curtain Lengths
Tip: Place rod higher to make windows appear taller and rooms more spacious.
Understanding Curtain Sizing
Length Calculation Formulas
Standard Lengths:
Height + Rod Height
Café Length:
Window Height ÷ 2
Extra Long:
Height + Rod Height + 6"
Rod Placement Guidelines
- •Standard rooms: 4-6 inches above window
- •High ceilings: 6-8 inches above window
- •Dramatic effect: Place near ceiling
Width Guidelines
- •Standard (2x): Balanced look, moderate gathering
- •Deluxe (2.5x): Fuller appearance, more folds
- •Ultra (3x): Maximum fullness, luxury look
Measuring Best Practices
- •Use a metal measuring tape for accuracy
- •Measure to the exact point where curtains will hang
- •Account for obstructions like radiators or furniture
- •Consider carpet thickness for floor-length curtains