Curtain Size Calculator
Step 1 of 3 — Window Size
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in
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Free Tool
No sign-up
Pro Formula
Designer rules
Real Products
Amazon picks
Your Curtain Measurements Will Appear Here
Enter your window dimensions and preferences to get exact panel sizes, rod length, and mount height.
17,800+
Windows Measured
99%
Accuracy Rate
4.8★
User Rating
Panel Dimensions
Exact width and length including hem and header allowances
Rod Sizing
Correct rod length and mount height for your window
Fullness Ratio
How much fabric you need for beautiful, full-looking curtains
Curated Products
Shop curtain panels and rods matched to your exact measurements