Unit Price Calculator

Quickly spot the better bargain when package sizes differ. Perfect for grocery runs, warehouse clubs, or vendor quotes.

Unit label

Sales tax (%)

Optional: include tax for a true out-the-door comparison.

Notes

Label

Quantity (oz)

Price ($)

Label

Quantity (oz)

Price ($)

Best Value

Winner

Option B

$0.2994 per oz

$4.79 total (16 oz)

Savings vs others

Context

Based on 2 options with 0% tax applied.

Option	Quantity	Price (with tax)	Unit Price	Diff vs Best
Option B	16 oz	$4.79	$0.2994	-
Option A	12 oz	$3.99	$0.3325	+$0.0331/unit

Provide the quantity and price for every package or quote you want to compare.

Adjust the units and optionally include sales tax for the final cost.

The table shows cost per unit for each option so you can choose the best value instantly.

Unit Price = (Price × (1 + Tax Rate)) ÷ Quantity

Savings per Unit = Your Option − Best Option

Example: $4.79 + 7% tax = $5.13 ÷ 16 oz → $0.321 per oz.

Compare: 12 oz for $3.99 with tax = $4.27 ÷ 12 = $0.356/oz → Option B saves $0.035/oz.

Price tags do not always tell the full story. Keep these tips in mind when comparing deals across stores or brands.

Check unit price labels on store shelves—they often confirm the math.
Consider storage and usage: a bulk deal is not a bargain if it spoils before you use it.
Include membership discounts or coupons to see the true cost per unit.
Standardize units by converting pounds to ounces or gallons to liters before comparing.

Convert them to a common unit first (for example, pounds to ounces). Enter the converted quantity for accurate results.

Include sales tax if it differs between stores or if you want the final price you will actually pay.

Add as many options as you need. The calculator highlights the cheapest cost per unit automatically.

Yes. Enter hours or deliverables as the “quantity” to compare hourly rates or per-project costs.