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Buy One Get One Free Calculator

Count complete buy-one-get-one-free pairs for identical-price items. See the payable total, free items, effective discount and merchandise contribution, with odd leftover items charged at full price.

FREE TO USEA LOOK ATLAS TOOL
01 USE IT NOW02 NO ACCOUNT03 FIELD NOTES BELOW
LIVE TOOL
BUY ONE GET ONE FREEFREE TO USE
WORKING INPUTS

Use one declared scenario.

LIVE RESULT

Payable merchandise total

$75.00Complete pairs only. One leftover item remains full price.
PAID / FREE ITEMS3 / 2
MERCHANDISE SAVINGS$50.00
EFFECTIVE DISCOUNT40.00%
COST OF ALL DELIVERED ITEMS$50.00
MERCHANDISE CONTRIBUTION$25.00
Free items = floor(quantity ÷ 2); payable items = quantity − free items
20

THE LEFTOVER IS STILL A SALE

Count the free item before reading the discount

Three identical items form one complete paid/free pair plus one full-price leftover. Calling the whole basket half-price overstates the discount and hides the cost of the free product.

Red tailored jacket photographed as a premium ecommerce product
LOOK ATLAS / PRODUCT STUDYLOOK ATLAS / FIELD STUDY
WORKING VIEW
$75.00 PAYABLE5 ITEMS · $25 PRICE · $10 COST
METHODFree items = floor(quantity ÷ 2); payable items = quantity − free items
WORKING NOTETwo complete pairs give two free items; three items are paid. Savings are $50, and merchandise contribution is $25.
INPUTS → CLEAR OUTPUT

THE FIELD NOTES

Quick answer above. Better decisions below.

Use the result now, then read the practical notes for assumptions, examples, limitations, and the choices behind it.

5 ITEMS · $25 PRICE · $10 COST$75.00 PAYABLE

Two complete pairs give two free items; three items are paid. Savings are $50, and merchandise contribution is $25.

01

Buy One Get One Free Calculator method

This models one identical-price buy-one-get-one-free rule with unlimited complete pairs. The basket quantity includes the free items. It does not automatically apply platform eligibility or per-order redemption caps.

02

Keep the inputs consistent

Every odd leftover item remains payable at full price. Effective discount depends on basket size: five items have two free and three paid, producing a 40% merchandise discount.

03

Use the result in your workflow

Keep the useful output beside the source values so another person can check the same scenario.

04

Know the limits of this tool

Merchandise contribution subtracts the cost of every delivered item. It excludes tax, shipping, fees, returns and overhead. If prices differ or the cheapest item is free, use your actual promotion and checkout rules instead.

THE PRODUCT IS NEXT

Turn the product into the campaign.

Use Look Atlas to transform one straightforward product photo into premium on-model ecommerce imagery for your store, ads, and social channels.
TRY YOUR FIRST SHOOT FREENO CREDIT CARD REQUIRED

Buy One Get One Free Calculator method

This models one identical-price buy-one-get-one-free rule with unlimited complete pairs. The basket quantity includes the free items. It does not automatically apply platform eligibility or per-order redemption caps.

Keep the inputs consistent

Every odd leftover item remains payable at full price. Effective discount depends on basket size: five items have two free and three paid, producing a 40% merchandise discount.

Use the result in your workflow

Keep the useful output beside the source values so another person can check the same scenario.

Check the full-price baseline with the retail margin calculator before offering free units. Use the contribution margin calculator for broader variable costs, since this BOGO result costs merchandise only and leaves shipping and channel fees outside the estimate.

Know the limits of this tool

Merchandise contribution subtracts the cost of every delivered item. It excludes tax, shipping, fees, returns and overhead. If prices differ or the cheapest item is free, use your actual promotion and checkout rules instead.

Questions, answered.

How does the buy one get one free calculator work?

This models one identical-price buy-one-get-one-free rule with unlimited complete pairs. The basket quantity includes the free items. It does not automatically apply platform eligibility or per-order redemption caps.

What should I check before using the result?

Every odd leftover item remains payable at full price. Effective discount depends on basket size: five items have two free and three paid, producing a 40% merchandise discount.

What does this tool leave out?

Merchandise contribution subtracts the cost of every delivered item. It excludes tax, shipping, fees, returns and overhead. If prices differ or the cheapest item is free, use your actual promotion and checkout rules instead.

BUILT BY LOOK ATLAS

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Turn a simple product photo into polished, campaign-ready creative for your store, ads, and social channels. No studio. No reshoots.

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A red statement jacket shown as a product photo and transformed into on-model campaign imagery
01 PRODUCT PHOTO → CAMPAIGN