Price per one unit you already chose
Unit price is the total price divided by the quantity:
price ÷ quantity
The quantity is a count of one measure you already chose. $1.00 for 8 ounces, entered as quantity 8, is $0.125 per ounce. The same $1.00 entered as quantity 1 is $1 per package. Those are different questions. This calculator does not convert ounces to pounds, or any other pair of measures.
NIST Handbook 130 includes a Uniform Unit Pricing Regulation: a price per one unit of a chosen measure. This tool only divides the two numbers you type. It does not pick a jurisdiction’s required unit, and it does not apply a retail rounding rule from that handbook.
Rounding
The result rounds half up to six decimal dollars. It is a comparison figure, not a payable cent. $10.00 for a quantity of 3 is $3.333333 per unit. $5.00 for 2 is $2.5 per unit. $0.01 for 3 is $0.003333 per unit.
Comparing two items
Both quantities must already be in the same measure. A 12-ounce price and a 1-pound price are not comparable here until you convert one of them yourself. There is no unit-name field, so the measure is not stored or sent anywhere.
A result above $100,000,000 per unit is rejected. Quantity must be greater than 0 and at most 100,000,000, with up to 6 decimal places.
To build a price from cost, use the markup calculator or the profit margin calculator. For a percent-off markdown, use the discount calculator.
Frequently asked questions
Does this convert ounces to pounds?
No. Enter the quantity in the measure you want the result to use. If you type
16 for a one-pound item priced by the ounce, the result is per ounce only
because you counted 16 ounces.
Why can the result show more than two decimals?
A payable
price is in cents. A unit price such as $10 ÷ 3 does not land on a cent. Six
decimal dollars show the half-up decision.
Are prices sent to analytics?
No. Analytics may record that this calculator ran. The price and quantity stay
in the browser.
Sources & review
- NIST Handbook 130, current edition — National Institute of Standards and Technology
Last reviewed: . The formula is reproduced above so you can check the math independently.
Educational comparison only. A jurisdiction’s required unit and retail rounding rules are not applied.