Is My Input Uploaded?

No. Processing runs locally in this browser tab. These tools do not upload or persist your input.

Can I Save And Reopen A Comparison?

Save Comparison downloads an editable JSON project; Import Comparison restores it. CSV and image-only PDF exports provide a report. Complete all options before exporting.

Unit Price Calculator & Grocery Comparison

Compare pack sizes, multipacks, discounts and usable quantities to find the lowest price per unit.

Measurement TypeCurrencyCompare Price Per

Enter the total price for all packs in each option—not the price of a single pack. Compare products of equivalent quality. Currency changes the display only.

Option 1

Product / Store

Total Price (USD)Number Of PacksSize Per PackUnit

Discounts, Fees & Waste

Discount (%)Coupon (USD)Tax (%)Fees (USD)Unused / Waste (%)

Percent discount, then coupon, then tax. Fees are added last without tax. Waste reduces usable quantity, not the checkout total.

Option 2

Product / Store

Total Price (USD)Number Of PacksSize Per PackUnit

Discounts, Fees & Waste

Discount (%)Coupon (USD)Tax (%)Fees (USD)Unused / Waste (%)

Percent discount, then coupon, then tax. Fees are added last without tax. Waste reduces usable quantity, not the checkout total.

Price Comparison

Lowest Unit Price

Family Pack

$0.6490 / 100 g

Option	Checkout	Per 100 g	Above Best
Family Pack	$6.49	$0.6490	0.0%
Standard Pack	$3.49	$0.6980	7.6%

DISCLAIMER: Estimates use your entered prices and assumptions; tax and promotion rules vary by store. No live prices or exchange rates are fetched. Weight and fluid ounces are different measurements and are not interchangeable. Waste-adjusted comparisons are estimates, not shelf-label prices.

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What Is the Unit Price Calculator & Grocery Comparison?

Compare pack sizes, multipacks, discounts and usable quantities to find the lowest price per unit.

How It Works

Choose mass, volume, count, length or area. Enter the total price for all packs, the number of packs and each pack's size. Optional adjustments cover discounts, coupons, tax, fees and expected waste. Save the comparison as JSON or export CSV and PDF reports.

When to Use It

Comparing grocery brands, bulk purchases, household supplies and materials without assuming a larger pack is cheaper. US and Imperial liquid units are distinguished. All options share one currency; no live exchange rates are applied.

Frequently Asked Questions

Is My Input Uploaded?: No. Processing runs locally in this browser tab. These tools do not upload or persist your input.
Can I Save And Reopen A Comparison?: Save Comparison downloads an editable JSON project; Import Comparison restores it. CSV and image-only PDF exports provide a report. Complete all options before exporting.

Found an issue? Send Feedback. See our data sources and update policy for tools that depend on changing information.