Whey protein price: what's a fair price per kg?
Today's cheapest and typical whey prices, per kg of protein, from every store we track. Prices updated 7 Nov 2026
Australia: Bulk Nutrients Thermowhey Weight Loss Protein at Bulk Nutrients: A$76 per kg of protein (A$62.00 for 1 kg, 82% protein).
United Kingdom: XL Nutrition XTRA Whey 2kg at Discount Supplements: £29 per kg of protein (£39.99 for 2 kg, 70% protein).
| # | Product | A$ per kg of protein | Price | Protein | Link |
|---|---|---|---|---|---|
| 1 | Bulk NutrientsThermowhey Weight Loss Protein | A$76A$2.28 per 30 g protein | A$62.001 kg | 82%label | View Bulk Nutrients Thermowhey Weight Loss Protein at Bulk Nutrients |
| 2 | Bulk NutrientsWhey Protein Concentrate | A$82A$2.46 per 30 g protein | A$59.001 kg | 72%label | View Bulk Nutrients Whey Protein Concentrate at Bulk Nutrients |
| 3 | Bulk NutrientsNatural Australian Whey Protein Concentrate | A$85A$2.55 per 30 g protein | A$61.001 kg | 72%label | View Bulk Nutrients Natural Australian Whey Protein Concentrate at Bulk Nutrients |
| 4 | Bulk NutrientsWhey Protein Isolate | A$95A$2.86 per 30 g protein | A$79.001 kg | 83%label | View Bulk Nutrients Whey Protein Isolate at Bulk Nutrients |
| 5 | Bulk NutrientsHASTA Whey Protein Isolate | A$96A$2.89 per 30 g protein | A$82.001 kg | 85%label | View Bulk Nutrients HASTA Whey Protein Isolate at Bulk Nutrients |
| 6 | Bulk NutrientsNatural Whey Protein Isolate | A$99A$2.96 per 30 g protein | A$80.001 kg | 81%label | View Bulk Nutrients Natural Whey Protein Isolate at Bulk Nutrients |
| 7 | Musashi100% Whey Protein Powder | A$107A$3.20 per 30 g protein | A$154.992 kg | 73%label | View Musashi 100% Whey Protein Powder at Musashi |
| 8 | Genetix NutritionPure Whey | A$109A$3.28 per 30 g protein | A$69.95900 g | 71%label | View Genetix Nutrition Pure Whey at Nutrition Warehouse |
| 9 | Happy WayMen's Premium Whey Protein | A$117A$3.50 per 30 g protein | A$86.951 kg | 75%label | View Happy Way Men's Premium Whey Protein at Nutrition Warehouse |
| 10 | BSc SupplementsWhey Protein Powder | A$117A$3.50 per 30 g protein | A$60.00720 g | 71%label | View BSc Supplements Whey Protein Powder at Nutrition Warehouse |
| 11 | Bare BlendsBare Whey Protein Isolate | A$146A$4.38 per 30 g protein | A$94.99750 g | 87%label | View Bare Blends Bare Whey Protein Isolate at Bare Blends |
| 12 | Pillar PerformanceGrass Fed WPI | A$169A$5.06 per 30 g protein | A$134.951 kg | 80%label | View Pillar Performance Grass Fed WPI at Nutrition Warehouse |
| 13 | MusashiWhey Protein Isolate - WPI | A$190A$5.69 per 30 g protein | A$133.49900 g | 78%label | View Musashi Whey Protein Isolate - WPI at Musashi |
Prices checked 7 Nov 2026 (daily), cheapest flavour and best-value size in stock, before shipping and discount codes. Protein % is from each label. How we calculate.
No United States products match this list yet. We add merchants every week.
| # | Product | £ per kg of protein | Price | Protein | Link |
|---|---|---|---|---|---|
| 1 | XL NutritionXTRA Whey 2kg | £29£0.86 per 30 g protein | £39.992 kg | 70%label | View XL Nutrition XTRA Whey 2kg at Discount Supplements |
| 2 | XL NutritionXTRA Whey 2kg | £29£0.86 per 30 g protein | £39.992 kg | 70%label | View XL Nutrition XTRA Whey 2kg at Discount Supplements |
| 3 | EFECTIV NutritionGrass Fed Whey Protein Isolate - 66 Servings - EFECTIV® | £36£1.08 per 30 g protein | £64.992 kg | 90%label | View EFECTIV Nutrition Grass Fed Whey Protein Isolate - 66 Servings - EFECTIV® at EFECTIV Nutrition |
| 4 | Applied Nutrition LtdDiet Whey Protein | £38£1.14 per 30 g protein | £54.951.8 kg | 80%label | View Applied Nutrition Ltd Diet Whey Protein at Applied Nutrition plc |
| 5 | EFECTIV NutritionEFECTIV® Clear Whey Protein Isolate | £62£1.87 per 30 g protein | £29.99600 g | 80%label | View EFECTIV Nutrition EFECTIV® Clear Whey Protein Isolate at EFECTIV Nutrition |
| 6 | Supplement NeedsVegan Iso+ - 1kg | £66£1.99 per 30 g protein | £39.991 kg | 60%label | View Supplement Needs Vegan Iso+ - 1kg at Supplement Needs |
Prices checked 7 Nov 2026 (daily), cheapest flavour and best-value size in stock, before shipping and discount codes. Protein % is from each label. How we calculate.
Whey price snapshot
| Country | Cheapest | Median | Products |
|---|---|---|---|
| Australia | A$76/kg protein | A$107/kg protein | 13 |
| United States | — | — | 0 |
| United Kingdom | £29/kg protein | £37/kg protein | 6 |
A price at or below the median is fair; anything in the bottom few rows of the table below is a good deal today.
FAQ
How much should whey protein cost per kg?
Compare per kg of protein, not per kg of powder. The table on this page shows the cheapest and the median price per kg of protein in each country today.
Why does whey protein cost so much more than milk?
Drying, filtering, flavouring, packaging, marketing and retail margin. Bulk unflavoured whey from a direct-to-consumer brand is usually the cheapest form.
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General information only, not medical or dietary advice. Check the label for allergens and talk to a doctor or dietitian if you are pregnant, have a medical condition or take medication.