The Gooderie Deal Checker: A Free Shopping Calculator
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This free shopping calculator, the Gooderie Deal Checker, answers one question: is this actually worth buying, or does it just look like it? Every good deal starts there, built from 17 years of watching how retailers actually price things.
Unlike a plain discount calculator, this one adjusts for the category you’re shopping in. A 10% discount on electronics can be a genuinely great deal, while the same 10% on clothing barely counts as a sale. Pick your category, plug in the prices, and get a real answer in seconds.
Try the Gooderie Deal Checker
Deal Checker
Buy, wait, or skip? Run today’s price through the checklist before you check out.
How This Deal Calculator Works
Most tools that call themselves a deal calculator do one thing: subtract the sale price from the regular price and call it a day. This one goes a step further, because the same percentage off means very different things depending on what you’re buying.
Electronics and everyday essentials rarely see steep discounts even during major sales events, so a modest cut in those categories is worth paying attention to. Clothing and Amazon devices, on the other hand, routinely see deep discounts, so it takes a bigger percentage off before it’s genuinely worth calling a deal. This tool weighs the discount against category-specific thresholds instead of judging every purchase against the same bar.
Add your remaining budget and the calculator also flags anything that’s a great discount but still not the right time to buy, since even a genuine deal isn’t worth starting the month over budget.
More Ways to Shop Smarter
This calculator is built into our guide on what to buy and skip on Prime Big Deal Days, which breaks down exactly which categories are usually worth shopping during Amazon’s October event and which ones are better to wait on.
KJ is the co-founder of The Gooderie, which she runs with her husband, Kyle, and an ecommerce, marketing, and SEO expert with 17+ years of experience. After nearly two decades working behind the scenes with retail data, pricing, digital publishing, and online shopping, she turned her professional experience and lifelong love of shopping and deal hunting into a resource for smarter shoppers. At The Gooderie, KJ specializes in finding and verifying deals, researching products, testing finds firsthand, and sharing the shopping strategies she’s learned throughout her career.
