NNenxo
Curtain size calculator

What size curtains should I buy?

Enter a few measurements from your window. Nenxo tells you how long the rod should be, how many curtain panels to buy and what curtain length to look for.

Calculate my curtain sizeNot sure how to measure?
No signupInches + centimetresCompare store curtains
Step 1

Measure your window

You only need a tape measure. Start with the basics; mounting details are optional.

Quick examples
1

Your window

Measure the width, the free wall beside it and the height to the floor.

Measure the opening or the outside trim—just use the same reference throughout.
If the rod is not installed yet, measure from where you plan to place it.
Measure to the nearest corner, cabinet or other obstacle.
2

How you want the curtains to look

The defaults are a sensible everyday starting point. Change them only if you want a different look.

More space lets open curtains sit beside the glass instead of covering it.
Not sure? Leave this on “Classic full look”.
3

If you already found a curtain

Enter the width of one panel from the product listing. If you have not chosen one yet, keep the example value and use the result as a guide.

Use the flat width shown by the store, before the curtain is gathered.
Optional: mounting positions
Only needed if you want Nenxo to show bracket marks. Check your rod instructions for this number.

Everything is calculated in your browser. No account is required.

Your curtain size

60 in window · two-sided curtains

Fits your wall space
Simple answerUse a 76 in rod, 4 panels and aim for 96 in curtain length.Already found curtains? Compare them below ↓
Rod / pole length76 in
Curtain panels4
Curtain length96 in
Final fullness2.74×
Show mounting details

Where the wall brackets go

Left bracket
Right bracket

Your shopping list

Step 2
Compare curtains you found in a store
Paste the size and price from up to three product listings. Nenxo checks how many packs you need, whether the length works and what the real total cost will be.


Use the same measurements above. You can compare products from different stores side by side.




Curtain A
Your first option
Enter size
What to buy—
How full—
Length check—
Total price—


Curtain B
Second option
Enter size
What to buy—
How full—
Length check—
Total price—


Curtain C
Third option
Enter size
What to buy—
How full—
Length check—
Total price—


A useful detail stores often hide
Some curtains are sold as single panels and others as pairs. Nenxo converts everything into whole packs, so you see what you actually need to buy—not a fractional panel count.
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Curtain sizing in plain English
What the numbers actually mean
You do not need to learn curtain jargon. These are the four decisions that matter before you order.


1. Rod width
The rod is usually wider than the window so open curtains can sit beside the glass. Nenxo checks your available wall space before suggesting a span.


2. Curtain width
Curtains need more fabric than the rod width or they look flat when closed. A classic everyday look is around 2× the rod width; the calculator does the multiplication for you.


3. Curtain length
Measure from the top of the planned rod to the floor. Then choose whether the fabric should sit just above the floor, touch it or gather slightly on it.


4. Number of panels
Nenxo divides the fabric you need by the width of one store panel and rounds up to whole panels—or whole packs in the comparison tool.




Example
A 60 in window with an 8 in rod extension
The rod becomes 76 in wide. At a classic 2× fullness you want about 152 in of flat curtain fabric. If one panel is 52 in wide, two panels are not enough, so Nenxo rounds the plan up to four balanced panels.
Try your own measurements


Before you click “buy”
Check the listing says panel or pair“52 × 96” may describe one panel even when the photo shows two.
Check the listed width is flat widthUse the product specification, not the gathered width in a styled photo.
Check the curtain lengthA curtain that is too short cannot be fixed by hemming; a longer one usually gives you more options.
Check the rod instructionsVery wide rods may need a centre support or different wall fixings.


Need help measuring?
Measure first, shop second
The measuring guide shows exactly where to place the tape and which numbers to write down before you open the calculator.
Open the 5-minute measuring guide
Frequently asked questions
How wide should my curtains be?
For a classic full look, the combined flat width of all curtain panels is often around twice the rod width. Nenxo calculates this from your actual rod span and rounds it to real panels.
Why can four panels be better than two?
Two panels may physically cover the window but still look stretched and flat when closed. Nenxo checks the total fabric width, not just whether the glass can be covered.
Do both sides of the window need the same wall space?
No. Enter the free wall space on each side separately. Nenxo warns you if the chosen rod extension would hit a corner, cabinet or other obstacle.
Can I compare curtains from different stores?
Yes. Enter up to three listings and Nenxo uses the same window measurements for all of them, so you can compare required packs, fit and total price fairly.
What curtain length should I buy?
Measure from the top of the rod to the floor, then choose the finish you want. Nenxo gives you the target length and the product comparison tells you whether a specific store length is too short, close to ideal or long enough to hem.
What if curtains are sold as a pair?
In the comparison section, set “Panels in one pack” to 2. Nenxo then calculates whole packs and the real total cost automatically.
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