BOGO Calculator
Enter both item prices and the deal on offer - second at half off, second free, or a flat 30 percent off everything. The calculator shows what you pay, the true effective discount, and the flat-percent sale that would match it.
BOGO math quietly assumes the two items cost the same: at equal prices, second-half-off is a clean 25 percent off - but drag a cheaper second item in and the discount slides toward 12. The comparison against a flat sale is the honest benchmark stores hope you skip, right next to the deeper catch: the deal only saves money if the second item was already on your list.
How to use
- Enter the cheaper item first - BOGO rules always discount the pricier second.
- Pick the deal type from the shelf sign.
- Compare against the flat-percent figure before you commit to two.
Frequently asked questions
How much of a discount is buy one get one 50% off?
At equal prices, exactly 25 percent off the pair - half the second item across two items. With unequal prices it shrinks: a 40 dollar item with a 60 dollar partner discounts the pair by only 20 percent, sliding toward 12 percent as the gap widens.
Is buy one get one free better than 50% off?
BOGO free at equal prices equals 50 percent off the pair - better than half-off-second at 25. But it forces quantity: on a single item, plain 50 percent off wins outright because you buy one, not two.
Do BOGO deals save money?
Only when the second item was already on your list. The deal engineers a second purchase and calls the bundle a discount - buy two to save is spending 150 percent to feel like you saved. The calculator prices the bundle so the choice is conscious.
Which is better: BOGO or a flat discount?
Run both through the calculator: flat 30 percent off wins on unequal prices and on single-item purchases; BOGO free wins only when prices are equal and you genuinely need two. The gap between the deal and the flat sale is printed in the stats.