More boxes. Show the unit cost.

Calculate the unit cost of a stated buy-some-get-some offer from the offer terms you enter.

Published by Steralis Labs · Prepared November 10, 2026

Your entries stay in this page. The tool code does not transmit or save them. Example numbers, when supplied, are hypothetical.

Transparent working

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Method

Multiply paid boxes by price per paid box. Add paid and included boxes to calculate boxes received, then multiply by units per box. Divide total price by total received units.

Example or interpretation

A hypothetical buy-two-get-one offer at $25 per paid box and 50 units per box costs $50 for 150 units before other charges.

Limits

This does not apply promotions, stack discounts, determine eligibility or verify an offer.

Read the complete workflow · Sources and evidence boundaries