Calculate cost per hundred, total cost, or number of units by entering any two values, with unit options for units, dozens, hundreds, or thousands.
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Cost Per Hundred Formula
The cost per hundred is the total cost divided by the number of individual units, then multiplied by 100.
- CPH = cost per hundred, in dollars per 100 units
- TC = total cost, in dollars
- U = number of individual units
If you leave total cost blank, the calculator uses:
If you leave number of units blank, the calculator uses:
The number of units field can be entered as units, dozens, hundreds, or thousands. The calculator first converts that entry into individual units before applying the formula.
- Q = quantity entered in the number of units field
- F = conversion factor for the selected unit type
- U = converted quantity in individual units
To use the calculator, enter any two values and leave the value you want to find blank. It can calculate total cost, number of units, or cost per hundred.
Unit Conversion Factors
Use this table to see how the unit selector affects the number of individual units used in the calculation.
| Selected unit | Conversion factor | Example entry | Individual units used |
|---|---|---|---|
| Units | 1 | 250 units | 250 |
| Dozens | 12 | 10 dozens | 120 |
| Hundreds | 100 | 4 hundreds | 400 |
| Thousands | 1,000 | 2 thousands | 2,000 |
Cost Per Hundred Interpretation
This table shows how to read a cost per hundred result.
| Cost per hundred | Equivalent cost per unit | Meaning |
|---|---|---|
| $25 per 100 | $0.25 each | Each individual unit costs 25 cents. |
| $100 per 100 | $1.00 each | Each individual unit costs 1 dollar. |
| $250 per 100 | $2.50 each | Each individual unit costs 2 dollars and 50 cents. |
Example
Example 1: Find cost per hundred
You buy 500 units for a total cost of $375.
The cost per hundred is $75 per 100 units.
Example 2: Find total cost
You need 8 dozens of an item, and the cost per hundred is $60.
First convert dozens to individual units:
Then calculate total cost:
The total cost is $57.60.
FAQ
What does cost per hundred mean?
Cost per hundred means the price for 100 individual units. For example, if the cost per hundred is $40, then 100 units cost $40, and one unit costs $0.40.
How do I compare two prices using cost per hundred?
Convert both prices to cost per hundred and compare the results. The lower cost per hundred is the cheaper option, as long as the units are the same type and quality.
Why does the unit selector matter?
The formula needs the quantity as individual units. If you enter 5 dozens, the calculator uses 60 individual units. If you enter 5 hundreds, it uses 500 individual units. This conversion changes the final result.
