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Ranked by value per gram of protein
Finding the best value protein powder in Australia means looking beyond the sticker price and calculating what you're actually paying per gram of protein. This comparison, current as of May 2026 and refreshed regularly, ranks protein powders from major Australian retailers by their cost per gram of protein to help you stretch your budget further. When comparing products of different sizes, simply divide the total price by the total grams of protein (not the product weight) to get your true cost per serve. Right now, options like Muscle Nation Custard Protein at Woolworths and Coles Wellness Road Pea Protein are delivering particularly strong value at under 3 cents per gram of protein. The rankings below include whey, casein, pea and beef protein isolates from supermarkets, chemists and supplement stores, so you can compare across the full range of what's available without hunting through multiple websites.
Don't just compare tub prices. Check the cost per gram of protein, since cheaper tubs often contain less protein per serve.
How the live ProteinPrice Value Score is calculated
Muscle Nation's Custard Casein ranks 4th on this list with a value score of 9.9 out of 10. At 50% off through Coles, it's currently excellent value for a slow-digesting protein. The cookies and cream flavour works well for overnight recovery. Casein is thicker than whey, so it's better suited for before bed rather than post-workout shakes.
Coles Wellness Road Pea Protein ranks 2nd on this list with an impressive 9.9 value score. At $10 for 500g, it's genuinely cheap for plant-based protein. The unflavoured format works well for smoothies but might taste earthy on its own. Being a Coles exclusive means it's easy to grab during your regular shop, though online-only shoppers miss out.
Body Science High Protein ranks 5th on this list with a strong value score of 9.9 out of 10. At $4.51 per 100g from Chemist Warehouse, it offers solid bang for buck without being the absolute cheapest. The caramel honeycomb flavour adds some variety if you're tired of standard chocolate and vanilla options. It's a smaller 720g tub, so you'll restock more often than bulk buyers.
