Cheapest Peanut Butter in the UK

Prices updated 15 August 2026 · 210 products across 7 supermarkets

The best-value peanut butter in the UK right now is Stamford Street Co. Crunchy Peanut Butter 340g at Sainsbury's — £2.79/kg (£0.95).

210Products Compared

7Supermarkets

£2.79Lowest /Kg

We compare peanut butter across all 7 major UK supermarkets — Tesco, Sainsbury's, Asda, Morrisons, Waitrose, Aldi and M&S — and rank by price per unit so you can see where peanut butter is genuinely cheapest. Prices update daily.

#	Product	Store	Price	Per Unit
1	Stamford Street Co. Crunchy Peanut Butter 340g	Sainsbury's	£0.95	£2.79/kg
2	GRANDESSA Smooth Peanut Butter 0.34 KG	Aldi	£0.95	£2.79/kg
3	GRANDESSA Crunchy Peanut Butter 0.34 KG	Aldi	£0.95	£2.79/kg
4	ASDA Classic Crunchy Peanut Butter 700g	Asda	£1.97	£2.81/kg
5	ASDA Smooth Peanut Butter 700g	Asda	£1.97	£2.81/kg
6	ASDA Classic Crunchy Peanut Butter 340g	Asda	£0.97	£2.85/kg
7	ASDA Classic Smooth Peanut Butter 340g	Asda	£0.97	£2.85/kg
8	Tesco Smooth Peanut Butter 700G	Tesco	£2.00	£2.86/kg
9	Tesco Crunchy Peanut Butter 700G	Tesco	£2.00	£2.86/kg
10	Tesco Smooth Peanut Butter 340G	Tesco	£0.99	£2.91/kg
11	Tesco Crunchy Peanut Butter 340G	Tesco	£0.99	£2.91/kg
12	JUST ESSENTIALS by ASDA Just Essentials Crunchy Peanut Butter 340g	Asda	£1.00	£2.94/kg
13	Stockwell & Co Crunchy Peanut Butter 340G	Tesco	£1.00	£2.94/kg
14	Morrisons Smooth Peanut Butter 700g	Morrisons	£2.25	£3.21/kg
15	Morrisons Crunchy Peanut Butter 700g	Morrisons	£2.25	£3.21/kg
16	Sainsbury's Peanut Butter Smooth 340g	Sainsbury's	£1.10	£3.24/kg
17	Sainsbury's Peanut Butter Crunchy 340g	Sainsbury's	£1.10	£3.24/kg
18	Sainsbury's Peanut Butter Crunchy 700g	Sainsbury's	£2.30	£3.29/kg
19	Sainsbury's Peanut Butter Smooth 700g	Sainsbury's	£2.30	£3.29/kg
20	Essential Smooth Peanut Butter	Waitrose	£1.80	£3.60/kg
21	Essential Crunchy Peanut Butter	Waitrose	£1.80	£3.60/kg
22	Morrisons Smooth Peanut Butter 340g	Morrisons	£1.25	£3.68/kg
23	Morrisons Crunchy Peanut Butter 340g	Morrisons	£1.25	£3.68/kg
24	GRANDESSA Smooth 100% Peanut Butter 1 KG	Aldi	£3.99	£3.99/kg

See The Live Peanut Butter Comparison →

Cheapest Peanut Butter: FAQ

Where is the cheapest peanut butter in the UK?

Right now the best value peanut butter is Stamford Street Co. Crunchy Peanut Butter 340g at Sainsbury's, £0.95 (£2.79/kg). SmartShelf ranks peanut butter by price per unit across 7 supermarkets, updated daily.

Which supermarket is cheapest for peanut butter?

We compare peanut butter across Tesco, Sainsbury's, Asda, Morrisons, Waitrose, Aldi and M&S. Today Sainsbury's has the cheapest option, but the ranking updates every day as prices change.

How does SmartShelf compare peanut butter prices?

We list each product's price per unit (£/kg, £/litre or per item) so you compare like for like, and we show loyalty prices such as Clubcard and Nectar where available — free, with no sign-up.