SC
Price Per Unit Calculator
Enter a total price and quantity to instantly find the cost per unit, cost per item, or price per piece. Compare up to four products side by side to see which one gives you the best value.

Enter Product Details

Number of items, grams, oz, liters, etc.
Useful when comparing multiple products
Enter a sale discount if applicable
Optional — adds tax to final unit price
Spreads shipping across all units for true cost

Unit Price Breakdown

Enter a price and quantity on the left, then click Calculate to see the exact cost per unit.

Price Per Item
—
per item
Full Breakdown
Total Price —
Quantity —
Base Unit Price —
Try an example

Compare Multiple Products

Add up to 4 products below. The calculator ranks them by unit price so you can find the cheapest option instantly.

What Is Price Per Unit?

Price per unit tells you exactly how much you pay for one single unit of a product — whether that unit is one item, one gram, one ounce, or one liter. It makes it simple to compare products that come in different sizes or package counts.

For example, a 12-pack of soda for $4.80 costs $0.40 per can. A 6-pack for $2.94 costs $0.49 per can. Even though the 6-pack is cheaper to buy upfront, the 12-pack gives you more value per dollar. For a deeper look at how stores display shelf pricing, try our unit price calculator.

Stores are often required by law to display shelf unit prices — our calculator does the same math in seconds for any product, any unit, and any currency.

Unit Price Formula

The calculation is simple:

  • Unit Price = Total Price ÷ Total Quantity
  • With Discount: Unit Price = (Total Price × (1 − Discount%)) ÷ Quantity
  • With Tax: Unit Price = (Total Price × (1 + Tax%)) ÷ Quantity
  • True Cost: Unit Price = (Price + Shipping) ÷ Quantity

Example: 500g of oats for $3.50 = $0.007/g or $7.00/kg. Compare any two products by converting to the same unit type.

Common Unit Types & When to Use Them

Unit Type Best Used For Example
Per item / eachAny countable productEggs, bottles, cans
Per 100gFood & groceryCereal, nuts, meat
Per ozUS food labelsSnacks, spices, baby food
Per liter / 100mlBeverages, liquid soapJuice, shampoo, oil
Per lb / kgBulk produce, meatRice, flour, fruit
Per sq ft / sq mFlooring, fabric, landTile, carpet, timber

Smart Buying Tips

Knowing the unit price is just the start. Keep these in mind before you buy:

  • Shelf life matters. A lower unit price on a bulk item is only useful if you can use it all before it expires.
  • Factor in storage. Buying 10 kg of flour saves money only if you have space to store it.
  • Include shipping. A cheaper online price may become more expensive once delivery is added. Use the shipping field in the calculator to check.
  • Watch for shrinkflation. Manufacturers sometimes reduce package size while keeping the same price. Always compare unit price, not sticker price.
  • Brand vs. store generic. Generic brands often have the same or lower unit price. Unit pricing removes brand bias from the comparison.
  • Buying in bulk? Use this bulk pricing calculator to see exactly how much you save as quantity goes up.
Quick Settings
Calculator
Show Advanced OptionsDiscount, Tax & Shipping fields
Show More OptionsBulk, Markup, Handling & Waste
Show Example ButtonsQuick-fill preset examples
Auto CalculateInstant results while typing
Auto CurrencyDetect currency by location
Unit Types
Weight Unitsg, kg, oz, lb, 100g
Volume Unitsml, liter, fl oz, gallon
Length & Area Unitsm, cm, ft, sq ft, sq m
Currency Groups
Asia & PacificINR, KRW, CNY, SGD, HKD…
European CurrenciesCHF, SEK, PLN, CZK, HUF
Americas CurrenciesBRL, MXN, COP, ARS
Middle East & AfricaSAR, AED, TRY, ZAR, NGN
Appearance
Dark ModeToggle light / dark theme
Accent ColorChoose highlight color
Display Sliders
Default Tax / VAT %Pre-fill tax rate in calculator
0%
Default Discount %Pre-fill discount in calculator
0%
Decimal PlacesResult precision (2–6 decimals)
4
Bulk ThresholdFlag orders above N units
Off
Default Markup %Pre-fill markup / margin field
0%
Waste / Yield Factor %Default spoilage / trim loss
0%

Typical Grocery Unit Prices by Pack Size

Illustrative examples showing how unit price drops as pack size grows. Values in $ USD for reference.

Product Small Pack Unit Price Medium Pack Unit Price Bulk Pack Unit Price

Prices are illustrative examples only. Actual prices vary by store, brand, and region. Always check real shelf prices.

How Much You Save Per Unit by Buying Larger

Percentage savings when moving from a single unit to a larger pack at various price points.

Single Price 2-pack (−10%) 6-pack (−18%) 12-pack (−25%) 24-pack (−30%) Savings/unit (24pk)

Assumes typical retail bulk discount percentages. Your actual savings will depend on the specific products and store.

Price Per Weight Unit — Cross Reference

If you know the price per kg, here is what it equals in other common weight units.

Price / kg Per 100g Per oz Per lb Per 500g Per gram

1 kg = 1000g = 35.274 oz = 2.2046 lb. Use these to compare products sold by different weight units.

Bulk Quantity vs. Single Unit Cost Comparison

How total spend and per-unit cost change across different purchase quantities at a fixed single-unit price.

Single Unit Price Qty: 1 Qty: 6 Qty: 12 Qty: 24 Qty: 48

No discount applied — shows how total cost scales linearly. To see bulk discounts, refer to the Pack Size Savings tab.

True Unit Cost Including Shipping

How a flat shipping fee affects the real cost per item at different quantities and item prices.

Item Price Qty Shipping $5 Shipping $10 Shipping $15 Shipping $20

Shipping $ cost divided across total units. Ordering more units reduces the shipping impact per item significantly.