Diet Coke Cola 18 x 330ml Cans — Standard
As of 8 Oct 2026, Diet Coke Cola 18 x 330ml Cans Standard is cheapest at Asda at £9.24 (£1.56/1 L) in United Kingdom — about 1% below the 2-retailer average of £9.37.
Prices updated 8 Oct 2026
Lowest recorded price: £2.50 at Sainsbury's (8 Oct); highest: £9.50 — currently £9.24 at Asda. Tracked since Jun 2026.
Showing prices and history for this variant plus 5 sibling variations — the same product and flavour across pack sizes, with unit prices keeping different sizes comparable. Lowest and highest values match the extension's price-history panel.
Price History
Price over timeLoading price history…
Price
| Retailer | Brand | Size | Price | Unit Price | In Stock | Updated |
|---|---|---|---|---|---|---|
 Sainsbury's | Diet Coke | Standard | £8.50 | £0.11/100mlBest | In stock | 8 Oct |
 Asda | Diet Coke | Standard | £9.24 | £0.16/100ml | In stock | 8 Oct |
| Sainsbury's | Diet Coke | Standard | £9.50 | £0.16/100ml | In stock | 8 Oct |
| Asda | Diet Coke | Standard | £4.24 | £0.16/100ml | In stock | 8 Oct |
| Sainsbury's | Diet Coke | Standard | £5.25 | £0.20/100ml | In stock | 8 Oct |
| Sainsbury's | Diet Coke | Standard | £2.50 | £0.21/100ml | In stock | 8 Oct |
| Sainsbury's | Diet Coke | Standard | £3.35 | £0.25/100ml | In stock | 8 Oct |
| Sainsbury's | Diet Coke | Standard | £6.45 | £0.36/100ml | In stock | 8 Oct |
Sainsbury'sIn stockAsdaIn stockSainsbury'sIn stockAsdaIn stockSainsbury'sIn stockSainsbury'sIn stockSainsbury'sIn stockSainsbury'sIn stock
Cheapest by brand
Ranked per 1 L at each item's cheapest store
Cheapest by product
Ranked per 1 L at each item's cheapest store
AsdaSainsbury'sUpdating prices — showing the previous selection until the new prices arrive.
- 1
Diet CokeBest
- Sainsbury'sCola 24 x 330ml Cans · Standard£1.08/L£8.50
- AsdaCola 18 x 330ml Cans · Standard£1.56/L£9.24
- Sainsbury'sCola 18 x 330ml Cans · Standard£1.60/L£9.50
- AsdaCola 8 x 330ml Cans · Standard£1.61/L£4.24
- Sainsbury'sCola 8 x 330ml Cans · Standard£1.99/L£5.25
- Sainsbury'sCola · Standard£2.09/L£2.50
- Sainsbury'sCola 4 x 330ml Cans · Standard£2.54/L£3.35
- Sainsbury'sCola 12 x 150ml Cans · Standard£3.58/L£6.45
Prices shown are indicative and may vary by store location. Confirm pricing at checkout.
Which store is cheaper?
Frequently asked questions
- Where is Diet Coke Cola 18 x 330ml Cans Standard cheapest?
- Asda has the lowest price at £9.24 (£1.56/1 L).
- How much does Diet Coke Cola 18 x 330ml Cans Standard cost?
- Prices range from £9.24 to £9.50 across 2 UK supermarkets. The average price is £9.37.
- What is the unit price of Diet Coke Cola 18 x 330ml Cans Standard?
- Priced per 100ml. Asda offers the best value at £0.16/100ml.
- Which supermarkets sell Diet Coke Cola 18 x 330ml Cans Standard?
- Diet Coke Cola 18 x 330ml Cans Standard is available at Asda and Sainsbury's.
- What is the lowest price ever for Diet Coke Cola 18 x 330ml Cans Standard?
- The lowest price OpenOrder has recorded for Diet Coke Cola 18 x 330ml Cans Standard is £2.50 at Sainsbury's (8 Oct), since we began tracking in Jun 2026. The current cheapest price is £9.24 at Asda.