Prices updated daily — 3 June 2026
Product type overview
sweet potatoes sits within Potatoes & Onions, part of Vegetables & Fruit. On this page you compare 12 products from 6 UK supermarkets: Tesco, Sainsbury's, ASDA, Aldi, Morrisons and Waitrose. The lowest unit price for sweet potatoes is £1.19/kg at Tesco. In total, 2 variants of sweet potatoes are compared (different pack sizes and compositions). All prices are normalised to the same unit (per kilogram, per litre or per piece) so that packs of different sizes can be compared fairly — a larger pack is not automatically the best value. The ranking below shows, per variant, which supermarket currently has the sharpest price, including own-label products alongside national brands. Prices refresh daily from the retailers' own public price lists, so you never see stale offers when planning your weekly shop. Allsupers uses no affiliate links or paid placement; the ranking is purely price-based and updated from public data.
Cheapest sweet potatoes
Compare 12 products across 6 supermarkets
sweet potatoes — compare prices across 6 supermarkets

NATURE'S PICK
Sweet Potato
1 pieces
£0.69/unit
at 1 supermarket

Morrisons
Morrisons British Market Street Baking Sweet Potatoes Twin Pack
2 pieces
£0.92/unit
at 1 supermarket

TESCO
Tesco Sweet Potatoes 1Kg
1 kg
£1.19/kg
at 1 supermarket

NATURE'S PICK
Sweet Potatoes
1 kg
£1.19/kg
at 1 supermarket

Morrisons
Morrisons Sweet Potatoes 1kg
1 kg
£1.19/kg
at 1 supermarket

TESCO
Tesco Large Sweet Potatoes Loose Class 1
350 g
£1.20/kg
at 1 supermarket

Waitrose Ltd
Waitrose Sweet Potatoes
294 g
£1.26/kg
at 1 supermarket

Sainsbury's
Sainsbury's Sweet Potato 1.25kg
1.25 kg
£1.32/kg
at 1 supermarket

Sainsbury's
Sainsbury's White Flesh Sweet Potato 750g
750 g
£3.13/kg
at 1 supermarket

Sainsbury's
Sainsbury's Sweet Potatoes Loose
387 g
£3.36/kg
at 1 supermarket

Sainsbury's
Sainsbury's Sweet Potato, SO Organic 750g
750 g
£3.60/kg
at 1 supermarket

Waitrose Ltd
Duchy Organic Sweet Potatoes
700 g
£4.00/kg
at 1 supermarket