Unit Price Calculator

Smart unit pricing made simple for groceries liquids bulk materials and more Compare base versus effective cost including shipping tax and discounts Model yield and dilution See cheapest options in batch comparisons Export CSV or PDF Visual charts guide decisions so you always buy the best value Save scenarios share links and compare subscriptions


Subscription model (optional)
Results

Formula

Unit Price (base) = Shelf Price / (Packs × Unit Size in Output Unit)
Unit Price (effective) = (Shelf Price + Shipping + Tax − Discount) / (Packs × Unit Size × Yield × Dilution)
Product Unit Pack size Qty Price Ship Tax Disc Yield % Dilution× Unit price Effective Notes

Tip: Click headers to sort. Cheapest effective price is highlighted.

Comparison chart

Cheapest item will be announced here.

How to use the Unit Price Calculator
  1. Choose your input unit (e.g., mL, kg, item) and type the pack size and packs.
  2. Enter the shelf price; optionally add shipping, tax, and discounts to get an effective price.
  3. Set Yield % for edible/usable portion and Dilution× for concentrates (e.g., 4 means 1 part makes 4 parts).
  4. Pick the output unit (e.g., per L) or use quick chips like per 100 g.
  5. Use Batch Comparison to add multiple items, then export CSV/PDF or copy to clipboard.
ScenarioWhat to do
Olive oil 750 mL vs 1 LInput units in mL, output per L. Include shipping to compare online vs store.
Rice 2 kg vs 5 kgSet output per kg; discount often makes 5 kg cheaper per kg.
Bleach concentrate 3:1Set Dilution× to 4 (1+3). Effective price reflects usable liters.
Meat with boneSet Yield to 70–80% to account for waste; compare effective edible price.

Assumption: prices and taxes vary—calculations are estimates.

FAQs
Should I include shipping and tax?

Include them for a true delivered cost, especially for online orders. For in‑store comparisons with VAT‑inclusive pricing, leaving them at 0 is fine.

Per 100 g vs per kg?

Per 100 g is convenient for labels and small packs; per kg is standard for bulk comparisons. The output unit picker lets you flip between them instantly.

What is yield and dilution?

Yield is the usable/edible portion (e.g., 80%). Dilution× is how much final product 1 unit of concentrate makes (e.g., 4).

How do subscriptions work?

Enter fee, months, deliveries, and units per delivery. The calculator will compute effective unit price over the full term.

Why are some rows not compared?

Only items with the same unit category (mass/volume/count/etc.) are ranked together against the chosen normalize‑to unit.

Understanding Unit Price: Formulas, Assumptions, and Examples

This calculator helps you compare products fairly by expressing cost per a standardized unit. Instead of relying on shelf price alone, you convert each option to “per unit” (for example per kilogram, liter, item, square meter) and optionally include real‑world extras—shipping, tax, discounts, yield, and dilution—to reveal the true cost.

Key concepts. The base unit price uses shelf price and net content only. The effective unit price adds or adjusts for charges and realities that change what you actually pay or receive. Yield captures unusable mass (peels, bones, trimmings). Dilution× converts concentrates to the final volume you produce. Region mode controls whether taxes are added (US/PK style) or already included (EU/UK style). These settings produce apples‑to‑apples comparisons across brands, sizes, and stores.

Formulas Used

FormulaMeaning
Base = Shelf Price ÷ (Packs × Unit Size in output unit)Pure shelf comparison ignoring shipping, tax, discounts, yield, dilution.
Effective = (Shelf + Shipping + Tax − Discount) ÷ (Packs × Unit Size × Yield × Dilution)True delivered/usable cost per chosen output unit.
Subscription = (Monthly Fee × Term) ÷ (Deliveries × Units per Delivery)Average cost per unit across a subscription period.

Variables

SymbolDescriptionTypical RangeExample
PacksNumber of identical packs in the purchase1 – 243 packs of 2 kg rice
Unit SizeContent per pack in the input unit1 mL – 25 kg750 mL bottle
YieldEdible/usable fraction as a percentage50% – 100%Chicken thighs ~80%
Dilution×Final units produced from one unit concentrate1 – 10+Bleach 1:3 ⇒ 4×
ShippingDelivery or handling fees per order0 – high₨250 courier fee
TaxSales tax or VAT depending on region0% – 25%+VAT included in EU, added in US/PK
DiscountCoupons, promo codes, loyalty redemptions0 – high₨200 weekly promo

Worked Example

Suppose you are choosing between two bottles of olive oil ordered online. Option A is 750 mL for ₨8.99 with ₨0 shipping and ₨0.70 tax. Option B is 1 L for ₨12.49 with ₨0 shipping, ₨0.98 tax, and a ₨1.00 discount. Set the output unit to per liter. Yield is 100% and Dilution× is 1.

OptionInputsBase Unit PriceEffective Unit Price
A (750 mL) Price 8.99, Ship 0, Tax 0.70, Disc 0, Size 0.75 L, Packs 1 8.99 ÷ 0.75 = 11.9867 (8.99 + 0 + 0.70 − 0) ÷ 0.75 = 12.92
B (1 L) Price 12.49, Ship 0, Tax 0.98, Disc 1.00, Size 1 L, Packs 1 12.49 ÷ 1 = 12.49 (12.49 + 0 + 0.98 − 1.00) ÷ 1 = 12.47

Although Option A has a lower shelf price, Option B wins on effective cost per liter because its discount offsets the tax, and the larger pack improves the per‑unit value. Add both rows in the Batch Comparison tab and the table will highlight the cheapest line automatically; the accompanying bar chart visualizes the gap. Use exports to document savings across recurring purchases.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.