Hair Extensions Lengths
So you’ve made the decision to invest in hair extensions and you have your colour and style down to a tee. But then you find out that human hair extensions come in all different sizes and lengths and, just like that, you’re back at the drawing board.
You see, choosing the correct length of hair extensions is crucial if you want your finished look to be natural and blended. So, if you’re wondering ‘What length hair extensions should I buy?’ fear not. We’re here with our hair extensions length guide. Just think of us as your haircare fairy godmother.
Choosing The Perfect Length Of Hair Extensions For You
Maybe you’re looking for super thick, long hair or you’d prefer shorter more natural looking extensions or even something in between!
Whatever your preference, we have 7 length options to choose from to suit every need. See our length guide below to help you navigate through the options.
Scroll down to read our FAQS relating to hair extension lengths.
Hair Extension Length Comparison
Below we have a guide that shows how long each length of hair should be. Please remember, it also depends on where the extensions are placed on the head, how tall you are and how the hair has been styled.
Those with longer bodies will see that the hair sits shorter than the guide and those who are shorter in height will notice the hair being a little longer.

Hair Extensions For Short Hair
Whether you’re rocking the bob? (yes, we’re still a fan) and want an update or your latest trip to the hairdressers was like visiting Edward Scissorhands, human hair extensions are a great way to breathe new life, and a little length, into your locks - in no time.
To know more on this topic, check out our "how to choose the right hair extensions for short hair". In which we break down the key for picking the right hair extensions.
Hair Extensions For Short Thin Hair
Of course, hair extensions aren’t only great for adding length and updating your look. They’re also your best friend if you want to boost your hair volume. Not only does it add depth and character but it’ll leave you with hair that’s thick and healthy-looking. It’s a win-win!
What Are The Best Hair Extensions For Short Hair?
If you have short hair, then it’s best to stick to 14-16” in human hair, Remy clip-ins. However, the type you choose is completely up to you. Permanent Hair Extensions also work well as they are easier to hide due to their smaller size.
Get 14 Inch Hair
14” hair extensions sit just below the shoulder on most people or at collarbone level. This length is ideal for thickening up bob cuts or to add length to very short hair. We have a wide range of 14” hair extensions from Ponytails and Clip-Ins to professional extensions like Tape-Ins or I-Tips. See our full range here.
14 Inc Before & After
In the before and after above, the talented @hairbyshelby_x has used 14” Iceblonde Tape-In Extensions to add length and thickness to a grown out graduated bob.
Short Hair Extensions For Volume
Usually, you’ll find that the shortest length of hair extensions is 12-14 inches. When in place, this length of hair extensions will reach your shoulders - depending on how tall you are.
Get 16 Inch Hair
16” hair extensions typically sit about 2-3” below the collarbone on most people. It’s a very popular length as it’s a common length for natural hair to be so this option is great for thickening up hair.
16 inch before & After
In the before and after above, the gifted @haironpointltd used a mix of colours of 16” Tape-In Extensions to boost the volume and add a couple of inches of length to this style. Get the look here.
Hair Extensions For Medium Length Hair
Hair neither long or short? Feeling like it’s been the same length for months on end?
Don’t worry, there’s a whole range of hair extensions just for hair types like you and, the good news is that you can pull off longer lengths too.
Hair Extensions For Medium Thin Hair
Just like shorter hair, medium length hair will also look thicker, bouncier and full of life with hair extensions in place.
Of course, if your only looking to enhance the thickness of your hair you can go for the same length as you have at the moment.
What Are The Best Hair Extensions For Medium Hair?
If you are blessed with medium to average hair length and thickness, the world really is your oyster with hair extensions.
Get 18 inch Hair
18” is the most popular length of hair extensions. 18 inches is a very natural, medium to long hair length that typically sits at bra level on most people but sometimes longer than this depending on where the hair is placed and how tall you are. We have this length available in all of our hair extension products including all Clip-In types and all Professional hair extensions. See the full range here.
18 Inch Before & After
How amazing is this transformation by @Jessies_hairbar, they have used 18 Inch I-Tip hair extensions in the shade #18/613 to add lots of length and thickness. Get the look here
Medium Hair Extensions For Volume
If your hair is around 1-2 inches past shoulder length then you’d benefit from hair extensions that are between 16 and 18 inches.
Get 20 inch Hair
20 inch hair extensions are the second most popular length. This length should sit just below bra level or around the middle of your back.
20 Inch Hair Extensions Before and After
The talented @chrihannahair has used 20” Nano Rings in shade #6 Chestnut Brown to create this stunning transformation. She has used the Nanos to thicken up the hair and lengthen it whilst also adding a subtle balayage. Get the look
Hair Extensions For Long Hair
Hair already rivalling Rapunzel? Don’t worry, it’s never too long in our opinion.
Get 22 inch Hair
22 inch hair extensions usually sit just below the ribs edging into the very long hair category.
22 Inch Hair Extensions Before and After
We just love the shine on this transformation by @hairbyshelby_x. To create this dazzling look the stylist used 22” shade #2 Darkest Brown in our ultra luxurious Remy Royale.
What Are The Best Hair Extensions For Long Hair?
Those with longer hair have a wider choice of hair pieces. In terms of extensions, you can take your pick from 20-22” and even 24-26”.
Get 24” Inch Hair
24 inch hair extensions are considered to be very long. If your looking for mermaid hair then this is the length for you! You will need to use extra thick extensions to blend this length in with shorter hair or use extra packs with Tape-Ins.
24 Inch Before & After
This stunning transformation by @hansayerhair shows how you can use super long extensions (24”) to create length AND change colour. The stylist has used a 24” Remy Royale Hair weft in shade #18/613. Get the look here
How To Add Hair To Long Hair?
It’s actually quite easy to blend natural long hair with hair extensions. In fact, some say it’s easier than doing it on short hair. Of course, it’s still important to choose the right material and colour for your look though.
Get extra-long 26 inch Hair Extensions
26 inch hair extensions are the longest length of hair you can purchase. Not for the faint hearted, this length usually goes right down to the bottom of the back hitting the top of the pant area.
26 Inch Before & After
The talented @renee_skye_hair created this amazing transformation using 26” shade #1B Natural Black Tape-In Extensions. Tapes can be used for both length and thickness.
Help me choose...
Ready to start shopping for hair extensions? Perhaps you want to get some personalised style advice from one of our haircare experts first?
At Cliphair, we have a huge range of extensions, hair care and accessories to help you look and most importantly feel your best.
What’s more, our range of products has something for every hair type, budget, and desired look. We also have a FREE colour match & advice service to ensure that your hair extensions reach their full potential, every time.