---
title: "Harry Potter Costume — £180K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/toys-games/harry-potter-costume"
last_updated: "2026-07-31T13:51:49.654Z"
locale: en
meta:
description: "Niche score 49/100 · £180K/yr market · 574K searches/yr · £16.26 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · £180K/yr market · 574K searches/yr · £16.26 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Harry Potter Costume — £180K/yr Amazon UK Niche (2026) - Flapen"
---
# **harry potter costume**
**Skip it**
Soft demand (-93.4% this quarter) — this niche doesn't clear our bar today.
Market size 36Growth 0Conversion 24Competition 79Returns 55Price range 73Avg price 78Brand share 81Review moat 71Quality gap 45
**Brand share**
**Great****54%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****36%**
top-5 click share — an open shelf
**Avg price**
**Great****£16.26**
avg listing price — sweet spot $15–$100
**Price range**
**Good****£5.22–£41.23**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****665.33**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Good****2.8%**
return rate — above 5% kills the launch gate
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£180K**
£180K/yr · 574K searches
**Conversion**
**Bad****1.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-93.4%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, harry potter costume is a £180K/yr Amazon United Kingdom market (574K searches/yr). The top 5 brands hold 54% of demand. Demand peaks in Mar–Oct. Verdict: Skip it — 49/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **harry potter costume market data**
- **Units sold / yr**
- **13K–15K**
- avg 250–500/product
- **Revenue / yr**
- **£203K–£244K**
- units × avg price
- **Conversion rate**
- **1.9%**
- **Avg BSR**
- **#905**
- **Page quality**
- **0%**
- **Prime**
- **94%**
- **Sponsored**
- **69%**
- **Out of stock**
- **8.3%**
- **Avg brand age**
- **46 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.
**Brands**
**21 **▲rising
**Sellers**
**62**
**Top-5 brand share**
**54%**
Top 20: 100%
**Top-5 click share**
**36%**
Top 20: 78%
**Open market**
**39%**
- Rubies22% - amscan10% - DABAOOU8% - Sekepingo7% - AUYAO7% - Mineup6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -93.4% search growth over the last 90 days.
200K150KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Oct · busiest ÷ quietest = 34.7×
[**Open Trend **](https://flapen.com/research/uk/toys-games/harry-potter-costume/trend)
## **Top harry potter costume search terms**
- **harry potter costume**300K/yr-95.8%1.7% conv. - **harry potter costume kids**114K/yr-95.5%2.3% conv. - **harry potter cloak**18K/yr-73.3%1.1% conv. - **harry potter robe**15K/yr-68.9%0.4% conv. - **harry potter outfit**13K/yr-62.1%3.8% conv. - **harry potter dress up**12K/yr-67.1%2.1% conv. - **gryffindor robe**16K/yr-87.5%0.7% conv. - **harry potter cape**9K/yr-80.0%2.3% conv. - **harry potter fancy dress**6K/yr-63.7%1.4% conv. - **harry potter costumes**8K/yr-79.8%0.6% conv. [**All search terms **](https://flapen.com/research/uk/toys-games/harry-potter-costume/search-terms)
## **Top harry potter costume products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%£5K6%£11K9%£16K12%£22K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**amscan 9911797 Childs Harry Potter Wizard Kit Fancy Dress Book Week Halloween Costume Outfit (Age 10-12 years)**amscan**£11.62**4.6★1,099 rev](https://www.amazon.co.uk/dp/B0946WZZF7) [2**DABAOOU 7pcs Wizard Costume Accessories Set Halloween Fancy Dress Outfit**DABAOOU**£11.74**4.7★26 rev](https://www.amazon.co.uk/dp/B0G4K9CT9R) [3**Rubies Official Harry Potter Gryffindor Classic Robe Costume Childs Size Large Age 7-8 Years Halloween**Rubies**£12.64**4.4★2,790 rev](https://www.amazon.co.uk/dp/B07NFC61R1) [4**Mineup 7 PCS Wizard Costume Set - Magic Robe Wand Scarf Glasses Tattoo Sticker Tie Hat - Accessories for Kids Halloween**Mineup**£19.77**4.8★16 rev](https://www.amazon.co.uk/dp/B0DJMS1H8P) [5**Harry Potter Deluxe Robe Large 7-8 years Multi-colored**Rubies**£9.99**4.6★2,823 rev](https://www.amazon.co.uk/dp/B002WHNXM6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**UAVAUI Wizard Costume Set 8 PCS Wizard Robe with Magic Hat Stickers Necklace Spectacles Magic Wand and Scarf Halloween Costume Set for School Activities Party World Book Day Role-Playing**UAVAUI**£10.34**9 rev7mo ago](https://www.amazon.co.uk/dp/B0G4RHZCWX) [**DABAOOU 7pcs Wizard Costume Accessories Set Halloween Fancy Dress Outfit**DABAOOU**£11.74**26 rev8mo ago](https://www.amazon.co.uk/dp/B0G4K9CT9R) [**Wizard Costume Accessories 8 Pcs Cosplay Accessories Set with Magic Cloak Magic Wand Hat Scarf Tie Necklace Glasses Tattoo Sticker Fancy Dress Set for Kids and Adult Halloween Party World Book Day**Wieerda**£10.89**11 rev8mo ago](https://www.amazon.co.uk/dp/B0G4JQMGNG) [**Harry Potter Gryffindor Unisex Black Hooded Bathrobe | Cosy Fleece Long Sleeve Loungewear for Relaxation | Movie House Merch Merch - Medium**Harry Potter**£28.46**10 rev10mo ago](https://www.amazon.co.uk/dp/B0FS1W4KLF) [**8PCS Wizard Cape Costume Accessories Set Fancy Dress Up Wizard Theme(125cm)**Sekepingo**£11.71**22 rev11mo ago](https://www.amazon.co.uk/dp/B0FNN4F5NY)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Harry Potter Gryffindor Unisex Black Hooded Bathrobe | Cosy Fleece Long Sleeve Loungewear for Relaxation | Movie House Merch Merch - Medium**Harry Potter**£28.46**5.0★**▲ 1000%**](https://www.amazon.co.uk/dp/B0FS1W4KLF) [**8PCS Wizard Cape Costume Accessories Set Fancy Dress Up Wizard Theme(125cm)**Sekepingo**£11.71**4.5★**▲ 1000%**](https://www.amazon.co.uk/dp/B0FNN4F5NY) [**Harry Potter Womens Wearable Blanket Hoodie | Adults Gray Hooded Pullover with Hogwarts Graphic All Over Print | One Size Sherpa Lined Loungewear with Pockets | Classic Wizard Movie Merchandise Gift**Harry Potter**£31.60**4.8★**▲ 1000%**](https://www.amazon.co.uk/dp/B0DFM1V6MT) [**8PCS Wizard Cape Costume Accessories Set Fancy Dress Up Wizard Theme(115cm)**Sekepingo**£11.80**4.5★**▲ 628%**](https://www.amazon.co.uk/dp/B0FNMZBTJ2) [**DABAOOU 7pcs Wizard Costume Accessories Set Halloween Fancy Dress Outfit**DABAOOU**£11.74**4.7★**▲ 360%**](https://www.amazon.co.uk/dp/B0G4K9CT9R)
**~~View all trending →~~**
## **What buyers say about harry potter costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**31%
*“Amazing quality”*
**Value For Money**20%
*“good value for what it was intended for”*
**Size-Overall**14%
*“size is good”*
**Advertised Vs Actual Product**7%
*“complete the look”*
**Material Quality**4%
*“Polyester as expected”*
**Gifting Purpose**4%
*“Good present for kids”*
**Design-Overall**3%
*“The colours and overall design look fantastic and really bring the whole costume together”*
**Correct Contents**2%
*“Amazing costume, all items arrived as described and looked brilliant for a fancy dress party”*
**Fun/Entertainment Experience**2%
*“£10.99, voucher £10.44 at time of review, makes this a full of fun costume for a teen upwards”*
**Color**1%
*“The colours are bright and bold, and they feel ok for basic costume props”*
### **What buyers complain about **
**Quality-Overall**21%
*“Cheap looking”*
**Size-Overall**12%
*“It is very, very long”*
**Advertised Vs Actual Product**7%
*“picture is misleading - accessories not included”*
**Stitch/Finish/Polish**4%
*“Very disappointed with the stitching”*
**Ease Of Cleaning**4%
*“once applied they need a good scrub to remove”*
**Stretchability/Expandability/Elasticity**4%
*“No stretch to jacket so better to size up”*
**Portability**4%
*“you cant wear a bag over it”*
**Thickness**4%
*“Very thin material”*
**Durability**3%
*“Broke after single use”*
**Adhesion/Stickiness**2%
*“Just that the stickers did not stick to the skin”*
### **Top return reasons **
**Size-Overall**68%
**Quality-Overall**13%
**Material Quality**4%
**Advertised Vs Actual Product**2%
**Value For Money**2%
**Defective Material/Parts**1%
**Thin**1%
**Functionality-Overall**1%
**Touch/Button Controls**1%
**Product Condition**1%
## **Common questions**
- **Is harry potter costume profitable to sell on Amazon United Kingdom?**
- The niche generates £180K/yr across 48 tracked products. 0 of 10 products launched in the last 360 days are still selling. 90-day search growth is -93.4%. Flapen's verdict: Skip it (49/100).
- **How competitive is the harry potter costume niche?**
- 21 brands and 62 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 54% of demand.
- **What do buyers complain about in harry potter costume?**
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Advertised Vs Actual Product. The return rate is 2.8%.
- **When does demand for harry potter costume peak?**
- Demand peaks in Mar–Oct; the busiest month runs 34.7× the quietest.
- **What does it cost to enter the harry potter costume niche?**
- Listings span £5.22–£41.23; the average listing price is £16.26 (sweet spot $15–$100). The average incumbent carries 665 reviews — the moat a new listing must climb.
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