💡 How Much Hair Extensions Do I Need?
Your Guide to Choosing the Right Amount for a Full, Natural Look
Wondering how many grams of hair you need for a full head?
You're not alone — it’s one of the most common questions we hear. This full head hair extensions guide is here to help you figure it out. The answer depends on a few key things:
- Your natural hair thickness
- The look you want (just volume? or long, flowing length?)
- The type of extensions you choose (Tape-ins? Wefts? Pre-bonded?)
As a general rule: If you're looking to add both length and volume, we recommend 100–200 grams of hair extensions for a full head.
Tips to Help You Get It Right
- Talk to Your Stylist: They know your hair best and can suggest exactly how much you’ll need.
- Order a Bit Extra: Especially if it’s your first time — better safe than sorry.
- Blunt Cuts Need More: Straight, blunt edges take more hair to blend naturally.
- Avoid Overloading: Too much hair = heavy maintenance + root stress.
- Focus on the Blend: Seamless blending = natural, flawless results.
Whether you have fine, medium, or thick hair, this blog can work like a quick hair extension pack calculator to help you make confident choices.
How Many Packs Should You Get?
Use this guide to estimate how many packs you’ll need based on your hair type and the extension method. These numbers are based on Origins Hair extension guide recommendations.
Note: These are general suggestions. Your stylist can give you a more personalized recommendation.
Classic Tape-in & Invisible Tape-in (50g per pack)
Great for discreet, lightweight installs
Wondering how many grams of hair for tape-in extensions? Here's a quick breakdown:
- Fine Hair: 2–3 packs (100–150g)
- Medium Hair: 3–4 packs (150–200g)
- Thick Hair: 4–6 packs (200–300g)
Pre-bonded (I-tip / Flat-tip / Nano-tip – 25g per pack)
Ideal for strand-by-strand installation
- Fine Hair: 4–6 packs (100–150g)
- Medium Hair: 6–8 packs (150–200g)
- Thick Hair: 8–10 packs (200–250g)
This method is often part of the best hair extension amount for thick/fine hair planning.
Genius Weft / Machine Weft
18”–20” (50g per pack)
- Fine Hair: 2–3 packs (100–150g)
- Medium Hair: 3–4 packs (150–200g)
- Thick Hair: 4–5 packs (200–250g)
22”–24” (60g per pack)
- Fine Hair: 2–3 packs (120–180g)
- Medium Hair: 3–4 packs (180–240g)
- Thick Hair: 4–5 packs (240–300g)
Wondering how much hair do I need for weft extensions? Use these estimates as your starting point.
Hand-tied Weft
16”–18” (28g per pack)
- Fine Hair: 4–5 packs (112–140g)
- Medium Hair: 5–7 packs (140–196g)
- Thick Hair: 7–9 packs (196–252g)
20”–22” (36g per pack)
- Fine Hair: 3–4 packs (108–144g)
- Medium Hair: 4–6 packs (144–216g)
- Thick Hair: 6–7 packs (216–252g)
Still Not Sure What You Need?
No problem — we're here to help! Chat with our support team or speak with your stylist for personalized advice. You can also explore our full range of extensions here.
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Find your perfect match and feel confident from root to tip.