Unit price comparison
Compare product unit prices based on the number of bundles, volume, and shipping fee. Calculated in g·kg, mL·L, and count units.
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Result
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Calculation method and criteria
A tool that compares the bundle price and shipping fee by dividing them by the total volume.
Actual example
If a pack of 500g contains 2 items for 5,000 won, the total is 1kg at 500 won per 100g. If a 1kg item costs 4,800 won, the 100g item costs 480 won, making the second item 20 won cheaper. If the shipping fees for the two items differ, compare them including the shipping fee.
Frequently Asked Questions
What units can be compared?
g·kg compares weight, mL·L compares volume. Counts compare only by unit. Weight and volume are not mixed because density is unknown. Total amount is calculated as content per unit × number of packs, and the pack price is the price of the entire pack.
Why is the minimum display different despite the same unit price?
The display value is rounded to the second decimal place; the minimum and equal values are determined as exact fractions without rounding. The unit price does not reflect quality, freshness, or storage costs. Compare products of the same use case.
How are the price and shipping fees included?
The amount is a whole number in units, and the actual product price after discount is entered. Shipping cost is the amount paid when buying a bundle. If free shipping, enter 0; if the shipping cost is shared for multiple items, enter the shared amount directly. Supports 2–10 items, 3-digit quantity, and whole bundle counts.
Calculation criteria and reference materials
- NIST — unit price comparison
The principle of comparing product price and quantity using the same unit of measurement
Verification of calculation criteria: · Calculation·verification principles · Report errors