About UnitPriceCheck
A fast, transparent, and mobile-first comparison tool built to help shoppers make smart packaging decisions in store aisles.
What Is UnitPriceCheck?
UnitPriceCheck (accessible at unitpricecheck.com) is a lightweight, zero-friction web utility created to answer a fundamental grocery shopping question: "Which product size or brand is actually the better deal?"
Rather than relying solely on total sticker prices, UnitPriceCheck computes the standardized cost per unit of measure (such as cost per ounce, per pound, per gram, per liter, or per individual item) and instantly reveals which choice delivers greater value.
The Problem We Solve
Supermarket shelves are intentionally filled with complex packaging variations that make mental math difficult:
Shoppers routinely assume the largest "club size" or "family pack" is the cheapest per unit. In reality, promotional sales on standard sizes often beat bulk packages.
One brand may display net weight in ounces while an imported alternative is labeled in grams, making direct shelf comparisons tricky without conversion math.
When manufacturers downsize containers (e.g. from 16 oz to 14 oz) while keeping shelf prices identical, unit rates rise quietly without visible price hikes.
Comparing a 6-pack of 12 oz cans against a single 2-liter bottle requires multiplying item count by volume before calculating unit price.
How the Calculator Works
UnitPriceCheck normalizes product measurements using clean mathematical conversions:
- Enter Product Price: Type the total shelf price for Option 1 and Option 2.
- Enter Package Size: Input the numeric quantity printed on the packaging.
- Select Measurement Unit: Choose from dry weight (oz, lb, g, kg), liquid volume (fl oz, ml, l), or count (each).
- Include Multipacks (Optional): Tap + Multipack to specify bundled item quantities (e.g. 6 cans).
- View Instant Winner & Savings: The tool normalizes units to a common scale in real time, declares the better value, and calculates your exact percentage savings.
Why Unit Pricing Matters
Looking solely at checkout prices can lead to misleading conclusions. For example, a 16 oz box of cereal for $3.99 costs $0.249/oz, while a 24 oz box on sale for $5.19 costs $0.216/oz. By checking the unit price, you immediately see that the larger box gives you 13.3% more cereal per dollar spent.
Designed for Real Grocery Aisles
We deliberately engineered UnitPriceCheck around practical mobile usability:
- Single-Handed Mobile Operation: Large touch targets (≥44px), numeric keyboards, and smooth downward scrolling.
- Zero Friction: No "Calculate" button required — calculations update reactively as you type.
- No Accounts or Logins: Use the tool immediately without creating accounts, entering emails, or remembering passwords.
- Private by Design: Calculations run 100% locally inside your browser. No calculator inputs or search histories are sent to or stored on our servers.
Our Commitment to Transparency
UnitPriceCheck uses transparent, reproducible arithmetic without proprietary black-box scoring. Our percentage savings formula is straightforward:
This gives shoppers an exact, unbiased measurement of relative financial value.
Who Uses UnitPriceCheck?
Feedback & Suggestions
We continually refine UnitPriceCheck to keep it fast, accurate, and helpful. If you encounter a calculation error, have an accessibility suggestion, or want to share feedback, please email us at contact@unitpricecheck.com or visit our Contact Page.