Curtains can completely change how a room looks and feels. They add warmth, style, and privacy, but only if they fit perfectly. Many people buy beautiful curtains only to find they hang awkwardly or don’t cover the window properly. That’s why learning how to measure for curtains is so important.
In this guide, we’ll explain how to measure for curtains step-by-step, so you get a perfect fit every time, whether you’re decorating your living room, bedroom, or kitchen.
Why Measuring for Curtains Matters
Before you even start shopping, knowing how to measure for curtains can save you time and money. Curtains that are too short or too narrow can make a window look unfinished. On the other hand, well-fitted curtains make your room look bigger, more elegant, and professionally styled.
So, let’s break down exactly how to measure for curtains the right way.
Step 1: Decide Where to Hang Your Curtain Pole
Before you take any measurements, install or decide where your curtain pole or track will go.
For most homes in the UK, it’s best to fit the pole about 15–20 cm above the window frame and extend it 15–20 cm beyond each side.
This allows your curtains to hang properly and keeps more light in when they’re open.
Getting this step right makes how to measure for curtains much easier later.
Step 2: Measure the Width
When measuring width, always measure the pole or track, not the window frame itself.
- For poles: Measure the full length of the pole between the finials (the decorative ends).
- For tracks: Measure the entire track length, including any returns (curved ends that attach to the wall).
If you want a fuller, luxurious look, your curtains should be 1.5 to 2.5 times the width of the pole or track.
So when learning how to measure for curtains, remember the wider the curtains, the more elegant they’ll look when closed.
Step 3: Measure the Drop (Length)
Now comes the important part: measuring how long your curtains should be.
There are three main curtain lengths people choose when learning how to measure for curtains:
- Above the sill: Curtains end about 1–2 cm above the window sill.
- Below the sill: Curtains fall 15–20 cm below the sill.
- To the floor: Curtains touch or slightly skim the floor for a modern, elegant look.
Where to start measuring from:
- If you’re using a pole, measure from the bottom of the curtain rings (or the eyelet top if the curtain slides directly on the pole).
- If you’re using a track, measure from the top of the track to where you want the curtain to finish.
Always double-check accurate measurements are key when mastering how to measure for curtains.
Step 4: Choose the Right Heading Style
Your curtain heading (the top part) changes how you measure.
Common types include:
- Eyelet curtains – Measure from the top of the pole, adding about 2–3 cm above for a neat look.
- Pencil pleat curtains – Measure from the bottom of the rings or track hooks.
- Tab top curtains – Measure from the very top of the tab.
Each style slightly affects how to measure for curtains, so always check the curtain type before finalizing your measurements.
Step 5: Double-Check Your Measurements
Once you’ve done all the measuring, it’s smart to check everything again.
A small mistake of even 1–2 cm can make your curtains hang unevenly or touch the floor too much.
When learning how to measure for curtains, accuracy is everything. Use a metal tape measure and write each number down clearly.
Bonus Tip: Measuring for Bay Windows
Bay windows can be tricky, but don’t worry.
Here’s a quick guide on how to measure for curtains in bay windows:
- Measure each section of the bay separately.
- If using a curved track, follow the curve closely with your tape measure.
- Add a little extra width so the curtains can close fully without gaps.
Getting bay windows right makes your home look elegant and cozy.
Common Mistakes to Avoid
Even people who think they know how to measure for curtains make these mistakes:
- Forgetting to account for curtain fullness
- Measuring only the glass instead of the pole
- Not leaving space for curtain brackets
- Using a soft fabric tape (which can stretch)
Avoiding these small errors ensures your curtains look made-to-measure, even if they’re store-bought.
Final Thoughts
Knowing how to measure for curtains properly is the secret to a polished, professional look in any room.
Take your time, use a sturdy tape measure, and always double-check your work. Once you master this skill, you’ll never need to rely on costly fitting services again.
Whether you’re updating your bedroom, living room, or kitchen, getting the right measurements ensures your curtains hang beautifully and complement your decor.
