This tool is for informational use only. It is not financial advice – Auburn AI is not a registered financial advisor. Numbers here are estimates; consult a licensed Canadian financial advisor before any major money decision.
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About this tool
The Price Per Unit Calculator figures out the actual cost per individual unit, ounce, gram, litre, or whatever measure matters for a given product. It is built for shoppers, small business owners, and anyone who wants to compare two or more package sizes without doing the arithmetic in their head at the store or on a procurement spreadsheet. You enter the price and the quantity for each option, and it spits out the cost per unit so the comparison is honest and immediate.
Reach for this tool whenever package sizes differ enough to make a straight price comparison misleading. A 500 ml bottle priced at $3.49 versus a 1.89 litre jug at $9.99 looks obvious until you actually do the division. Use it for groceries, cleaning supplies, bulk orders, or any purchasing decision where size and price vary across options.
How to use it
- Enter the total price of the first product in the price field.
- Enter the quantity or package size and select the unit of measure.
- Repeat steps one and two for each additional product you want to compare.
- Click Calculate to see the cost per unit displayed for each option.
- Read the highlighted result showing which option costs least per unit.
- Adjust any price or quantity figure to recalculate instantly if needed.
Pro tips
- Standardize your unit before comparing across categories, for example convert pounds to grams so the denominator is always the same.
- Factor in loyalty card or sale prices rather than shelf prices to get the true unit cost you will actually pay.