Curtain Measurement Calculator

Curtain Measurement Calculator

Calculate perfect curtain measurements for your windows based on rod type, fullness preference, and window dimensions.

Please enter valid window width
Please enter valid window height
Measurements are recommendations only. Adjust based on personal preference and fabric characteristics.

Curtain Measurement Results

Window Visualization Left Panel Right Panel
Two 45″ Panels

Measurement Breakdown:

Total Fabric Width Needed: 90 inches
Finished Panel Width: 45 inches
Finished Curtain Length: 84 inches
Rod Width Needed: 94 inches
Number of Panels: 2 panels

Cutting Instructions:

Cut Width per Panel: 48 inches
Cut Length per Panel: 88 inches
Total Fabric Needed: 4 yards

Installation Tips:

Rod Installation Height: 4-6 inches above window
Rod Extension: 4-6 inches each side
Floor Clearance: 1/2 inch above floor

About

Our Curtain Measurement Calculator helps homeowners and decorators calculate perfect curtain measurements for any window based on style preferences and window dimensions.

Why Choose

Comprehensive calculations for all curtain types, rod styles, and fullness preferences to achieve professional-looking window treatments every time.

Features

Multiple curtain styles, rod types, fullness options, and advanced customization for perfect measurements and fabric requirements.

Benefits

Save time and money by getting measurements right the first time. Achieve balanced, professional-looking window treatments with proper fullness and drape.

1

Enter Window Details

Input your exact window measurements and select your preferred mounting position (inside or outside mount).

2

Select Style Options

Choose your curtain type, rod style, and fullness preference to customize the look you want to achieve.

3

Get Perfect Measurements

Receive precise measurements for panels, rods, and fabric requirements for professional results.

Frequently Asked Questions – Curtain Measurements

What’s the difference between inside and outside mount?

Inside mount curtains are installed within the window frame for a clean, built-in look. Outside mount curtains are installed on the wall above and to the sides of the window frame, making the window appear larger and providing better light blockage.

How does fullness affect curtain appearance?

Fullness refers to how much extra fabric is used relative to the window width. Standard fullness (1.5x) creates gentle folds, while fuller options (2-3x) create more luxurious, dense folds. Fuller curtains provide better light control and a richer appearance when closed.

How high above the window should I hang my curtain rod?

For optimal appearance, hang rods 4-6 inches above the window frame. For ceilings 8 feet or higher, consider mounting closer to the ceiling (within 2-3 inches) to create the illusion of height. Always ensure consistent height across all windows in a room.

How much wider than the window should curtains be?

Curtain rods should extend 4-6 inches beyond the window frame on each side. This allows curtains to stack back completely off the window when open, maximizing natural light. For outside mount installations, this also helps make the window appear larger.

How long should curtains be?

Curtains should either: 1) Just touch the floor (most common), 2) Float 1/2 inch above (easier cleaning), or 3) Puddle 2-4 inches on the floor (dramatic look). Avoid ending above the floor unless covering just the window. For sill-length curtains, end 1/2 inch below the sill.