Curtain width: 120 inches, Panels: 2 (each 152.4 cm wide), Rod: 167.6 cm, this curtain size calculator to determine the appropriate dimensions for your curtains based on your window measurements.
This calculator takes into account factors such as window width, desired fullness, and hanging style to provide you with accurate curtain measurements.
The calculator typically requires input such as:
- Window width
- Desired curtain fullness (e.g., 1.5x, 2x, or 2.5x the window width)
- Hanging style (rod pocket, grommet, pinch pleat, etc.)
Using these inputs, the calculator provides outputs like:
- Curtain width: The total width of fabric needed
- Number of panels: How many individual curtain panels you’ll need
- Rod length: The recommended length for your curtain rod
For example, let’s consider a window that is 60 inches (152.4 cm) wide:
- With a fullness of 2x and a rod pocket style:
- Curtain width: 120 inches (304.8 cm)
- Number of panels: 2 (each 60 inches / 152.4 cm wide)
- Rod length: 66 inches (167.6 cm)
- With a fullness of 2.5x and a grommet style:
- Curtain width: 150 inches (381 cm)
- Number of panels: 2 (each 75 inches / 190.5 cm wide)
- Rod length: 66 inches (167.6 cm)
Curtain Size Calculator
| Window Width | Fullness Factor | Total Curtain Width | Panel Width (2 panels) | Rod Length | Conversion Equation |
|---|---|---|---|---|---|
| 48 inches | 2x | 96 inches | 48 inches | 54-60 inches | 1 inch = 2.54 cm |
| 122 cm | 2x | 244 cm | 122 cm | 134-146 cm | 1 cm = 0.3937 inches |
| 60 inches | 2.5x | 150 inches | 75 inches | 66-72 inches | 1 inch = 2.54 cm |
| 200 cm | 1.5x | 300 cm | 150 cm | 212-224 cm | 1 cm = 0.3937 inches |
| 84 inches | 2x | 168 inches | 84 inches | 90-96 inches | 1 inch = 2.54 cm |
| 150 cm | 2.5x | 375 cm | 187.5 cm | 162-174 cm | 1 cm = 0.3937 inches |
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Curtain Size Calculation Formula
The basic formula for calculating curtain size is:
Curtain Width = Window Width × Fullness Factor
Where:
- Window Width is the measured width of your window
- Fullness Factor is the desired fullness of your curtains (typically 1.5 to 3)
For example:
- For a 72-inch window with a fullness factor of 2:
- Curtain Width = 72 × 2 = 144 inches
- For a 100 cm window with a fullness factor of 2.5:
- Curtain Width = 100 × 2.5 = 250 cm
To determine the width of each panel, divide the total curtain width by the number of panels you want:
Panel Width = Curtain Width ÷ Number of Panels
For instance, if you want two panels for the 72-inch window example:
- Panel Width = 144 ÷ 2 = 72 inches per panel
For curtain length, use this formula:
Curtain Length = Desired Drop + Rod Height Above Window + Extra for Hanging Method
Where:
- Desired Drop is how far down you want the curtains to hang
- Rod Height is how high above the window the rod is placed
- Extra for Hanging Method accounts for additional fabric needed for the chosen hanging style
How do you calculate curtain size?
To calculate curtain size:
- Measure your window width: Use a tape measure to get the exact width of your window.
- Determine desired fullness: Choose a fullness factor (usually between 1.5 and 3).
- Calculate total curtain width: Multiply window width by fullness factor.
- Decide on number of panels: Choose how many panels you want.
- Calculate panel width: Divide total curtain width by number of panels.
- Measure for length:
- Measure from the rod to where you want curtains to end.
- Add extra length for the hanging method (e.g., rod pocket, rings).
- Consider rod length: Add 3-6 inches on each side of the window width for rod overhang.
Example: For a 90-inch window, 2x fullness, floor-length curtains with a rod pocket:
- Total curtain width: 90 × 2 = 180 inches
- Two panels: 180 ÷ 2 = 90 inches per panel
- Length: 96 inches (8 feet from rod to floor) + 4 inches for rod pocket = 100 inches
What size curtains for 180cm window?
For a 180 cm window, the curtain size depends on your desired fullness. Here are calculations for different fullness factors:
- 1.5x Fullness:
- Total curtain width: 180 cm × 1.5 = 270 cm
- Two panels: 135 cm each
- 2x Fullness (recommended for a luxurious look):
- Total curtain width: 180 cm × 2 = 360 cm
- Two panels: 180 cm each
- 2.5x Fullness (for maximum fullness):
- Total curtain width: 180 cm × 2.5 = 450 cm
- Two panels: 225 cm each
For length, measure from your curtain rod to where you want the curtains to end, and add extra for the hanging method.
How wide should curtains be for a 36 inch window?
For a 36-inch window, curtain width calculations are as follows:
- 1.5x Fullness (minimum recommended):
- Total curtain width: 36 × 1.5 = 54 inches
- Two panels: 27 inches each
- 2x Fullness (standard):
- Total curtain width: 36 × 2 = 72 inches
- Two panels: 36 inches each
- 2.5x Fullness (full):
- Total curtain width: 36 × 2.5 = 90 inches
- Two panels: 45 inches each
Remember to choose a curtain rod that extends 3-6 inches beyond each side of the window, so for a 36-inch window, select a rod between 42-48 inches long.
What size curtains do I need for a 72 inch window?
For a 72-inch window, here are the curtain size calculations:
- 1.5x Fullness:
- Total curtain width: 72 × 1.5 = 108 inches
- Two panels: 54 inches each
- 2x Fullness (recommended):
- Total curtain width: 72 × 2 = 144 inches
- Two panels: 72 inches each
- 2.5x Fullness (very full):
- Total curtain width: 72 × 2.5 = 180 inches
- Two panels: 90 inches each
For the rod, choose a length between 78-84 inches to allow for proper overhang on each side of the window.
What size curtains for a 90 inch window?
For a 90-inch window, consider these curtain size options:
- 1.5x Fullness:
- Total curtain width: 90 × 1.5 = 135 inches
- Two panels: 67.5 inches each
- 2x Fullness (standard recommendation):
- Total curtain width: 90 × 2 = 180 inches
- Two panels: 90 inches each
- 2.5x Fullness (maximum fullness):
- Total curtain width: 90 × 2.5 = 225 inches
- Two panels: 112.5 inches each
Select a curtain rod between 96-102 inches long to ensure proper coverage and aesthetics.
