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Calculate Curtains

Window width · panels · finished length

Curtain Calculator

Measure your window, choose the fullness you want, and use the actual panel size to estimate rod width, curtain panels, and packages.

Start CalculatingRead Measuring Guide

Worked example

60 in window · 52 in panels3 panels
Rod width
72 in
Fullness
2×
Fabric width
144 in

Example only. Your result uses your measurements and product details.

Your measurements

Curtain measurements

Use the actual panel width and package count from the curtains you intend to buy.

in
Measure outside edge to outside edge of the frame.
in
Start at 6 in; adjust for the space beside your window.
×
1.5× is lighter; 2× is fuller.
in
Use the width printed on your chosen product.
panels
Check whether your product is sold singly or in pairs.
in
Measure from your planned hanging point to the floor.
in
Use 0 for curtains that just touch the floor.

Your result

Plan the right curtain size

Enter your measurements and calculate to see a clear buying estimate here.

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No email needed. Please do not include personal details.

How it works

What the result means

Rod width = window width + 2 × extension on each side. Fabric width = rod width × fullness. Panels = round up(fabric width ÷ panel width). Packages = round up(panels ÷ panels per package).

Measure each window separately. For finished length, follow the measuring point specified by the curtain heading and hanging hardware you choose.

How to measure for curtains →

Reference

Source behind this calculator

Use the guidance as a starting point and confirm dimensions against your chosen product or supplier.

IKEA window measuring guide

View source ↗

Continue planning

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