How do I calculate price per 100g protein?

Use this formula: (Container price ÷ total protein grams) × 100. First calculate total protein by multiplying protein per serving by servings per container. Then divide the price by that number and multiply by 100.

Under $6/100g is good value, under $5.50/100g is excellent.

Brands choose serving sizes arbitrarily—price per 100g protein standardizes comparison.

How do I calculate price per 100g protein?

Use this formula: (Container price ÷ total protein grams) × 100. First calculate total protein by multiplying protein per serving by servings per container. Then divide the price by that number and multiply by 100.

What is a good price per 100g protein benchmark?

Under $6/100g is good value, under $5.50/100g is excellent. Between $6-8/100g is average. Over $9/100g is poor value unless you have specific dietary requirements like vegan protein.

Why does serving size matter for protein value?

Brands choose serving sizes arbitrarily. One brand might use a 20g scoop while another uses 35g—making the 'per serving' comparison meaningless. Price per 100g protein standardizes this across all products.

Does protein calculator work for plant-based protein?

Yes, the same calculation applies to all protein types. Plant proteins typically cost $2-4 more per 100g than whey due to more expensive raw materials and processing.

What about calories per 100g protein?

That's a separate metric measuring protein purity. Pure protein is 400 calories per 100g—anything above that comes from fats and carbs. Calculate it: (calories per serving ÷ protein per serving) × 100.

Protein Powder Price Per 100g Calculator

Enter any protein powder's details below to instantly calculate its true cost per 100g of protein. This is the only way to accurately compare products across different brands, sizes, and types.

Calculate Price Per 100g Protein

Container Price ($)

Container Weight

Serving Size (grams)

Protein Per Serving (grams)

Calories Per Serving (optional)

How to Use This Calculator

Find all information on the product's nutrition label: container price, container weight, serving size, and protein per serving. The calculator will determine price per 100g protein, total protein in the container, and a value rating. Under $5.50/100g is excellent value, over $9/100g is poor value.

Find all the information you need on the product's nutrition label:

Container Price: What you're paying for the tub
Container Weight: Listed on the front (e.g., "2lb" or "907g")
Serving Size: On the nutrition label (e.g., "30g")
Protein Per Serving: Also on the nutrition label (e.g., "25g")
Calories Per Serving: Optional, for calculating purity

Understanding Your Results

Price Per 100g Protein

This is the key metric. Lower is better. This number tells you the actual cost of protein, standardizing comparison across all products regardless of container size or serving size.

Value Rating

Based on our analysis of 2026 products:

Excellent: Under $5.50/100g — Top 10% of all products
Good: Under $6/100g — Top 25% of all products
Fair: Under $7.50/100g — Above average
Below Average: Under $9/100g — Paying more than necessary
Poor: Over $9/100g — Significantly overpriced

Calories Per 100g Protein

This measures protein purity. Pure protein contains 400 calories per 100g. Anything above that indicates additional calories from fats, carbs, or fillers. Lower is generally better if you're maximizing protein intake while controlling calories.

Price Per 100g Protein Benchmarks

Based on our database of protein powders, here are typical price ranges by type:

Protein Type	Good Value	Average	Premium
Whey Concentrate	Under $5.50	$5.50 - $7.50	Over $7.50
Whey Isolate	Under $6.50	$6.50 - $8.50	Over $8.50
Plant Protein	Under $8	$8 - $11	Over $11
Casein	Under $7	$7 - $9.50	Over $9.50

Frequently Asked Questions

Why not just compare price per serving?

Brands choose serving sizes arbitrarily. One might use a tiny 20g scoop while another uses a 35g scoop. Price per serving would make the smaller scoop look cheaper even if both products have identical protein content per dollar.

What if my product doesn't list servings per container?

Calculate it yourself: divide the container weight by the serving size. For example, a 907g (2lb) container with 30g servings has about 30 servings (907 ÷ 30 = 30.2).

Compare Pre-Calculated Products

Don't want to do the math? Our comparison tool has already calculated price per 100g protein for 70+ products. Filter by type, sweetener, and caloric efficiency to find your best value.