Price per Kilogram
When pack sizes differ, the price on the label tells you nothing about which is cheaper. Dividing by weight puts them on one ruler.
Your numbers
Price each
8
Formula
Price each = Price ÷ Weight (kg)
The big pack is not always the better deal — anything you throw away raises what you actually paid per kilogram.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| PriceThe amount being charged. Decide first whether it is before or after tax. | 12 | 0 and up |
| Weight (kg) (kg)Mass in kilograms. | 1.5 | 0 and up |
Step by step
Quick reference table
Results when only Price changes and everything else stays put.
| Price | Price each |
|---|---|
| 6 | 4 |
| 9 | 6 |
| 12 | 8 |
| 18 | 12 |
| 24 | 16 |
What each result means
| Result | At default values |
|---|---|
| Price eachWhat one costs, divided across everything you carry home. | 8 |
Common mistakes
The big pack is not always the better deal — anything you throw away raises what you actually paid per kilogram.
Glossary
- Price
- The amount being charged. Decide first whether it is before or after tax.
- Weight (kg)
- Mass in kilograms.
- Price each
- What one costs, divided across everything you carry home.
Frequently asked questions
Q. How is Price per Kilogram calculated?
Price each = Price ÷ Weight (kg) — When pack sizes differ, the price on the label tells you nothing about which is cheaper. Dividing by weight puts them on one ruler.
Q. Can you walk through an example?
With Price 12, Weight (kg) 1.5kg, the answer is Price each 8.
Q. What do I need to enter?
Enter Price, Weight (kg). The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Price moves the answer to Price 6 → Price each 4 and Price 24 → Price each 16. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
The big pack is not always the better deal — anything you throw away raises what you actually paid per kilogram.
Related calculators
Tax rates and interest conventions differ by country and product — check your contract for real transactions.