Shopping & Household calculator
Unit Price & Offers
Unit Price & Offers. Use the actual product label and your measured quantities. Starting values are editable examples, not universal rates or product specifications. Keep the units beside each input.
Method and practical checks
- Price is the total offer price. Use the same currency throughout.
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Your measurements and assumptions
Use the actual product label and your measured quantities. Starting values are editable examples, not universal rates or product specifications. Keep the units beside each input.
| Price | 3 | |
|---|---|---|
| Quantity per item | 500 | |
| Unit | g | |
| Items in offer | 1 |
Method and assumptions
price_per_100g = total_offer_price / (quantity_in_g * offer_item_count) * 100
Price is the total offer price. Use the same currency throughout.
Bulk and multibuy offers use the total price and number of identical items in that offer.
Mass cannot be compared with volume without a product-specific density; this tool rejects that comparison.
A lower unit price saves money only if you use the quantity purchased.
Example with the selected inputs
- Product A unit price: 6 / kg
- Product A price per 100 g: 0.6
Change the inputs to match your own task. Whole packages are rounded up after allowances, so purchase quantity and actual requirement can differ. Apply each allowance once.