Electrolyte Powder, Unflavoured, 500 g
£16.99 for 500 g at Bulk. That works out at 7p per serving, which ranks it 2nd of the 260 electrolytes we price across 9 UK retailers.
At one serving a day, this pack lasts 8 months. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
Electrolytes
- Servings: 500 ÷ 2 per serving = 250
- In the pack: 250 × 1 serving = 250 servings
- £16.99 ÷ 250 servings × 1 serving = 6.8p per serving
- A week 6.8p × 7 = 48p · a month × 30 = £2.04 · a year × 365 = £24.81
- Amount per serving: priced per serving — compare what each serving contains before choosing.
Calcium
- Servings: 500 ÷ 2 per serving = 250
- In the pack: 250 × 184 mg = 46 g
- £16.99 ÷ 46 g × 500 mg = 18.5p per 500 mg calcium
- A week 18.5p × 7 = £1.29 · a month × 30 = £5.54 · a year × 365 = £67.41
- Amount per serving: stated on the label.
Magnesium
- Servings: 500 ÷ 2 per serving = 250
- In the pack: 250 × 30 mg = 7.5 g
- £16.99 ÷ 7.5 g × 100 mg = 22.7p per 100 mg magnesium
- A week 22.7p × 7 = £1.59 · a month × 30 = £6.80 · a year × 365 = £82.68
- Amount per serving: stated on the label.
Potassium
- Servings: 500 ÷ 2 per serving = 250
- In the pack: 250 × 306 mg = 76.5 g
- £16.99 ÷ 76.5 g × 200 mg = 4.44p per 200 mg potassium
- A week 4.44p × 7 = 31p · a month × 30 = £1.33 · a year × 365 = £16.21
- Amount per serving: stated on the label.
The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.
Cheaper electrolytes
All 260, ranked →
Switching to the Bulk pack saves 24p a month at one serving a day.
Ranked purely by price per serving. 32 combination products also contain electrolytes.
How it compares: other forms of calcium
All 25, ranked →
Ranked purely by price per 500 mg calcium. 216 combination products also contain calcium.
How it compares: magnesium oxide
All 9, ranked →
Ranked purely by price per 100 mg magnesium. 91 combination products also contain magnesium.
How it compares: other forms of potassium
Compare every product in this form →
Ranked purely by price per 200 mg potassium. 58 combination products also contain potassium.
On the label
- Electrolytes · Electrolytes (per serving)
- 1 serving per serving (priced per serving — compare what each serving contains before choosing)
- Calcium · Other forms
- 184 mg per serving (stated on the label)
- Pack
- 500 g · 250 servings · 2 g a serving
- Cost per serving
- 7p (250 servings in the pack)
More label details
- Magnesium · Oxide
- 30 mg per serving (stated on the label)
- Potassium · Other forms
- 306 mg per serving (stated on the label)
- Barcode
- 5055950625365
- Sold by
- Bulk
- What the listing says
- “500g” · “approximately 2 g” · “[Calcium ; 184 mg ; 23% RI]”
Ingredients
Sodium Chloride, Potassium Sulphate, Dicalcium Phosphate, Magnesium Oxide.
From the Bulk listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
Add to your basket
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One serving is our comparison unit, not a recommendation.
Add to my stack
My stackSee when it runs out, the day to reorder by and what it costs you a day. Free, kept on this device.
Filled in from the label’s serving: 2 g.
What you paid
Optional. At Bulk today: £16.99.
“Order by” allows 3 working days’ delivery from Bulk and your spare days.
Price history
No price change since 21 September 2026. Checked on 1 day, most recently 21 September 2026.
- Price at every check
- £16.99Bulk
- First recorded
- £16.9921 Sept
- Checked on
- 1 daysince 21 Sept
Checked once so far, on 21 September 2026.
- First checked at Bulk: £16.99
Questions about this product
How much does Bulk Electrolyte Powder cost per 500 mg calcium?
18p per 500 mg calcium, from £16.99 for 500 g at Bulk, checked on 21 September 2026.
How long does one pack last?
3 months at one 500 mg dose. The pack holds 46 g in total.
How much does Bulk Electrolyte Powder cost per serving?
7p per serving, from £16.99 for 500 g at Bulk, checked on 21 September 2026.
Is it the cheapest of the electrolytes in the UK?
No, it is 2nd of 260. Electrolyte Powder at Bulk works out at 6p per serving.
How long does one pack last?
8 months at one serving. The pack holds 250 servings in total.
How much does Bulk Electrolyte Powder cost per 100 mg magnesium?
23p per 100 mg magnesium, from £16.99 for 500 g at Bulk, checked on 21 September 2026.
How long does one pack last?
2 months at one 100 mg dose. The pack holds 7.5 g in total.
How much does Bulk Electrolyte Powder cost per 200 mg potassium?
4p per 200 mg potassium, from £16.99 for 500 g at Bulk, checked on 21 September 2026.
How long does one pack last?
1 year at one 200 mg dose. The pack holds 76.5 g in total.
About Bulk
Founded 2006 · Colchester, England
Bulk is a British sports nutrition company based in Colchester, Essex. Adam Rossiter and Elliot Dawes, who met at the University of Essex, started it in 2006 as Bulk Powders; it was renamed Bulk at the start of 2021, and the founders remain its majority owners.
All 133 Bulk products, priced per doseVisit Bulk (opens in a new tab)
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