Unit-price comparison: questions and guides
Each guide here answers one question with a practical example, then takes you to the tool to try it yourself. Guides: 15.
Questions
- Which pack is really cheaper?How to compare packs of different sizes by working out the price per kilo, litre or piece, to see which is truly cheaper and by what percentage the others cost more.
- My supplier sells a carton of 48 for 180 and the shop sells singles at 4.5 each: how do I see the per-piece price and the saving?Enter the carton and the single as pieces to see the price per piece and the gap in percent. That per-piece figure is also your cost when you price for resale.
- One honey is sold by grams and another by millilitres: why won't the tool compare them?Grams are mass and millilitres are volume, and converting needs the product's density, so the tool will not guess. What to do instead to compare the two packs fairly.
- A bottle imported from the UK is labelled in fluid ounces: can I compare it with a bottle sold in millilitres?The tool's fluid ounce is the US one, and the UK one is slightly smaller. Enter the ml figure printed on the pack instead, and see what the mistake does in numbers.
- An imported supplement on Amazon is sold in ounces and a local one in kilograms: how do I compare them per kilo?Ounces and pounds are mass units, so the tool converts them exactly and compares with the local pack per kg or per 100 g. A worked example of an Amazon import vs local.
- I buy coffee and spices in small packs: how do I show the price per 100 g instead of per kilo?Choose per 100 g under Show cost and prices read in numbers that fit small purchases. Changing the base never changes the winner or the percentage, as this example shows.
- Is a buy-two-get-one-free offer really cheaper than the big pack?Enter the offer as one option: everything you pay for everything you get, then compare it with the big pack per kilo. A worked example and the mistake that flips it.
- The tool says the two packs are a tie: how do I choose between them?A tie means the unit cost is exactly the same, so neither saves you money. What decides it then, and why a 5 halala difference is not treated as a tie.
- I buy bubble wrap and tape rolls for my store in different lengths: how do I find the cheapest price per metre?Enter each roll's price and length in metres or centimetres to see the price per metre and the cheapest roll. Only compare rolls of the same width and grade.
- I have quotes from several suppliers with different pack sizes: how do I line them up to find the cheapest per unit?Enter up to six quotes with their price and quantity to see each one's unit cost, the cheapest, and how much more every other quote costs. Plus how to fold in delivery.
- I sell my product in 250 g, 500 g and 1 kg packs: how do I check that the bigger packs really are better value for customers?Enter your three sizes with their prices to see the price per kilo of each. If it does not fall as the pack grows, customers who compare will notice. An example and fix.
- Are the supplier prices I compare in this tool sent or saved anywhere?No. The comparison runs in your browser, so negotiated prices and supplier names stay on your device. And what to watch yourself when you copy and share the result.
- The tool says the small pack costs 15.79% more per kilo: how do I turn that into what I would actually save in a year?A percentage alone does not say how much you save. Multiply the per-kilo gap by what you use in a year. Two worked examples show why a small gap on a staple matters more.
- A concentrated detergent comes in 1 litre and a regular one in 3 litres: how do I compare them when the strength differs?Comparing per litre misleads here, because the tool does not know strength. Compare on the washes printed on each pack using the piece unit. The result flips completely.
- One option is priced in USD online and the other in AED in a local shop: why does the comparison look wrong?The tool compares numbers and does not convert currencies, so a dollar price looks far cheaper than it is. Convert at what you really pay first. The result flips.