Back to all calculators

Shopping

Best-value comparison

Best-value comparison: enter your values and get an instant free result.

Your result

Complete the fields and calculate.

Calculation method and formula

Offer A price ÷ Offer A quantity; Offer B price ÷ Offer B quantity

Understand the inputs

Offer A price
Use a measured value or your own assumption.
Offer A quantity
Use a measured value or your own assumption.
Offer B price
Use a measured value or your own assumption.
Offer B quantity
Use a measured value or your own assumption.

Assumptions and limitations

Compare equivalent quantities, units and services. A lower unit or area price does not automatically account for quality, toppings, delivery or personal use.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Offer A price
6
Offer A quantity
750
Offer B price
7.5
Offer B quantity
1000
Example resultOffer B is cheaper

Unit price A: 0.008 · B: 0.0075.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Best-value comparison work?+

Offer A price ÷ Offer A quantity; Offer B price ÷ Offer B quantity. Compare equivalent quantities, units and services. A lower unit or area price does not automatically account for quality, toppings, delivery or personal use.

What assumptions should I consider for this result?+

Compare equivalent quantities, units and services. A lower unit or area price does not automatically account for quality, toppings, delivery or personal use. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Prices, measurements and model assumptions determine how well the result represents your situation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

Related document on CleverDocuFree document templates and practical PDF tools – directly in your browser with no sign-up.