Price per Unit Calculator
Price per Unit Calculator
A bigger pack isn't always the better deal — the only fair way to compare is price per unit (per item, per kg, per liter, whatever the relevant measure is). This calculator does that single division for you.
Retailers use this to set and audit shelf-tag unit pricing (often legally required); shoppers use it to compare pack sizes at a glance.
- Formula: Price per Unit = Total Price ÷ Quantity.
- Always compare the same unit: to compare a 500g pack against a 1kg pack, convert both to price-per-kg first — comparing price-per-pack directly is misleading.
- Unit pricing is often mandated by law on grocery shelf tags in the EU and elsewhere, precisely because raw pack price is easy to misjudge.
How do I compare two different pack sizes?
Calculate the price per unit for each pack separately (using the same unit of measure — e.g. both per kg or both per liter), then compare the two unit prices directly. The lower one is the better deal.
What counts as a "unit" here?
Whatever makes sense for what you're buying — a single item, a kilogram, a liter, 100 sheets, etc. The formula is the same regardless; just be consistent with what "quantity" represents.
Price per Unit Calculator
A bigger pack isn't always the better deal — the only fair way to compare is price per unit (per item, per kg, per liter, whatever the relevant measure is). This calculator does that single division for you.
Retailers use this to set and audit shelf-tag unit pricing (often legally required); shoppers use it to compare pack sizes at a glance.
- Formula: Price per Unit = Total Price ÷ Quantity.
- Always compare the same unit: to compare a 500g pack against a 1kg pack, convert both to price-per-kg first — comparing price-per-pack directly is misleading.
- Unit pricing is often mandated by law on grocery shelf tags in the EU and elsewhere, precisely because raw pack price is easy to misjudge.
How do I compare two different pack sizes?
Calculate the price per unit for each pack separately (using the same unit of measure — e.g. both per kg or both per liter), then compare the two unit prices directly. The lower one is the better deal.
What counts as a "unit" here?
Whatever makes sense for what you're buying — a single item, a kilogram, a liter, 100 sheets, etc. The formula is the same regardless; just be consistent with what "quantity" represents.