Compare grocery deals per gram, millilitre or piece: enter price and quantity per option to get unit prices, best value, and the saving.
Comparisons are computed locally in your browser. No prices, lists or data ever leave your device.
Symbols are display only — nothing is converted at exchange rates, and all rows must be in the same currency.
Estimates from the shelf prices you enter — taxes, fees and delivery are out of scope; check in store.
Every comparison in this tool is one division: unit price = price ÷ quantity, shown to four significant figures with the currency symbol you picked. Two options are only comparable when their quantities are measured in the same unit — the tool refuses to rank a gram row against a kilogram row and tells you to convert first, which is the same rule a price tag follows.
No — the tool intentionally offers one metric set (g, kg, ml, L) plus pieces and 'each'. Mixing metric and imperial inside one comparison is where unit-price mistakes actually happen, so if a label shows oz, weigh or convert it to grams first and enter the metric figure. That keeps every row on the same ruler.
No. Enter the shelf price you see; sales tax, fees and shipping are out of scope. For a true delivered-groceries comparison, fold the delivery fee into one option's price yourself (or compare per basket, not per gram) — the arithmetic will still hold, the tool just does not guess those numbers for you.
No. The symbol dropdown ($, €, R$, Rp, ₹, £) is display-only: it prefixes your results so they read naturally. Nothing is converted at any exchange rate, and all rows in one comparison are assumed to be in the same currency.
Usually not, and that is exactly why unit price is worth checking. Shops place eye-level premium packs against low-shelf bulk packs whose per-gram price can be higher, and shrinking package sizes hide behind unchanged shelf prices. Even when the bulk pack does win on unit price, spoilage, freezer space and your budget can hand the real saving to the smaller one.
No. Prices and quantities are divided by plain JavaScript in your browser — no store APIs, no product database, no network request. You can run it in a shop on airplane mode and it keeps working.
If you just finished with Unit Price Calculator, the natural next steps are Invoice Generator, Percentage Calculator, Cross-border Mortgage, or browse every tool in Daily Tools.