24 doorsWhat’s inside →The Best 2026 Advent Calendars Under £20 in the UK
51 calendars, 51 new for 2026, most of them 24 doors. Full stats
We list 51 advent calendars for 2026 on sale in the UK for under £20, from £3.35 to £20 with the middle one at £12. Most are food and drink (24), pet (14) and toys (9). The best rated is Cadbury Dairy Milk Adult 2026, 4/5 at £8.
UpdatedOctober 6, 2026Curatedby Max Zeshut
51 calendars, 51 new for 2026, most of them 24 doors. Full stats
By budget and shop
The biggest brands here
The calendars
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24 doorsWhich advent calendar under £20 to get
One for each way of asking. Every row clears the same bar — rated 4 out of 5 or better by an editor, or where none has scored it, an editors’ pick or contents worth more than the box — and nothing older than last season. How we review
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24 doorsCannot decide?
One for each way of asking, further down.
A first pick, the best value, under $50, the splurge — and a person to ask if yours is not there.
Make one insteadA calendar that travels in a link.
Photos, videos and notes behind each door. Free, no account.
Why trust the numbersWe opened 999 of these boxes.
Counted, priced and photographed by hand before any of it went up.
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24 doorsHow to choose an advent calendar under £20
- Step 01
Match the doors to the days
49 of the 51 here have 24 doors — a 24-door box opens one a day from 1 December to Christmas Eve. The other 2 have 25. Every start date
- Step 02
Know which season you are buying
51 of the 51 here are 2026 editions. A brand's page keeps every edition together, so check whether the box you are looking at is this year's before you compare prices.
- Step 03
Start from the ones we have opened
0 of the 51 here carry an editors' pick and 51 have a written score. Those are the boxes somebody on this site has actually judged. The rest are listed because they exist, not because we are recommending them; being on this page is not a verdict. How we review
Still looking?
If you cannot decide, get Cadbury Dairy Milk Adult 2026
The best value among the calendars here that we have rated this season, rated 4/5, £10, 24 doors. 348 g of Dairy Milk for 10 GBP is three and a half standard calendars, with a full bar on the last day. Chunks rather than shapes, and milk only.
24 doorsThe advent calendars under £20 shelf, by the numbers
How each one is countedEvery figure is computed from the records at build time and says how many it is drawn from. Door price is the price on the box over its doors; the value multiple is what the contents come to at retail over that price; full size is the retailer’s own marking. Dollar figures use rough rates and are for ranking only. Where a record cannot support a figure, it is left out rather than guessed.The definitions, one by one →51 advent calendars under £20 calendars for 2026, a median of $0.67 a door.
| Pick | Calendar | Stock | ||||||
|---|---|---|---|---|---|---|---|---|
| First pick | Cadbury Dairy Milk Adult 2026 | £10 | 24 | £0.42 | — | — | 4/5 | — |
| kids | Play-Doh 2026 | $19.99 | 24 | $0.83 | — | — | 4/5 | — |
| women | Yankee Candle 24 Days of Fragrance 2026 | £34.99 | 24 | £1.46 | 1 | — | 4/5 | — |
| — | Denzel's Advent Calendar 2026 | £15 | 24 | £0.63 | 1 | — | 4/5 | In stock |
| — | Lily's Kitchen Cat 2026 | £8.50 | 24 | £0.35 | 1 | — | 4/5 | In stock |
| — | Lily's Kitchen Dog 2026 | £10.50 | 24 | £0.44 | 1 | — | 4/5 | In stock |
| — | Monty Bojangles Marvellous Dusted Truffles Collection 2026 | £15 | 24 | £0.63 | 1 | — | 4/5 | — |
| — | Ruff's Recipes Dog 2026 | £7 | 24 | £0.29 | 1 | — | 4/5 | — |
| — | Seriously Good Cat 2026 | £4 | 24 | £0.17 | 1 | — | 4/5 | — |
| — | Disney Stitch Advent Calendar 2026 | $19.97 | 24 | $0.83 | 1 | — | 3.5/5 | — |
Median price $16 across the 51 priced; door price across 51. Rough dollar rates, for ranking only.
What is behind the doors — 102 items across 15 boxesChocolate25Tea light24Dog treats18Sweets14Cat treats5Cat treat4Not yet typed6
How big the boxes are — all 5124 doors4925 doors2
Launches we saw — 15 of 51
- Denzel's Advent Calendar 2026 17 September
- Fuggler 2026 17 September
- Good Boy Chewy Dog Advent Calendar 2026 17 September
- Good Boy Real Meat Dog Advent Calendar 2026 17 September
- Good Boy The Snowman & The Snowdog Crunchies Advent Calendar 2026 17 September
- Jelly Belly Harry Potter Hogwarts Trivia 2026 17 September
- Lily's Kitchen Cat 2026 17 September
- Lily's Kitchen Dog 2026 17 September
Frequently asked questions
What is the best advent calendar under £20 in the UK?
By our rating: Cadbury Dairy Milk Adult 2026 (4/5, £8), Denzel's Advent Calendar 2026 (4/5, £15) and Lily's Kitchen Cat 2026 (4/5, £8.50). Each page lists what is behind the doors and every UK shop we track with its price.
What is the cheapest advent calendar in the UK?
Sainsbury's Free From Choc 2026, at £3.35. Across the 51 boxes under £20, the middle price is £12.
Where can I buy advent calendars in the UK?
The UK shops we track carry most of them: Sainsbury's (7), Lords & Labradors (5), Smyths (4), Argos (4), Morrisons (3) and Boots (3). Every calendar's page lists each shop with its price and when we last checked it.
When do advent calendars go on sale in the UK?
Most 2026 boxes are on sale already; the ones still on pre-order or coming on a set date are on our release-dates page, with the day each ships.