1. What is Price per 100g?

The price per 100g is a standardized unit price calculation used in the UK to compare product prices regardless of package size. It helps consumers make informed purchasing decisions by showing the true cost of products.

2. How Does the Calculator Work?

The calculator uses the following simple formula:

Where:

• Price — Product price in GBP (£)
• Weight — Product weight in grams (g)

Explanation: The formula calculates how much 100g of the product would cost based on its actual price and weight.

3. Importance of Unit Pricing

Details: UK regulations require many retailers to display price per 100g (or per 100ml for liquids) to help consumers compare value between different sized packages of the same product.

4. Using the Calculator

Tips: Enter the product price in GBP (£) and its weight in grams (g). Both values must be greater than zero. The calculator will show you the standardized price per 100g.

5. Frequently Asked Questions (FAQ)

Q1: Why is price per 100g important?
A: It allows for fair comparison between different package sizes and helps identify the best value products.

Q2: Is this required by UK law?
A: Yes, the Price Marking Order 2004 requires unit pricing for most prepacked foods and some other products.

Q3: How accurate should the calculation be?
A: Retailers must display price per 100g to 2 decimal places when the price per kilogram is £1 or more.

Q4: Does this apply to all products?
A: Most food items and some non-food items require unit pricing, with exceptions for very small packages.

Q5: Can I use this for liquids?
A: For liquids, price per 100ml is typically used instead of price per 100g.