Price per item:
total price / quantity

How do you calculate price per item?

Divide the total price by the number of items. A pack of 12 for Rs 399 costs Rs 33.25 per item. The same sum works for trays, boxes, catering orders and wholesale lots, as long as you count pieces correctly.

The calculator takes a total price and a quantity from 1 to 999, and returns the price of a single item.

Think of it as the answer to a simple question: what does one piece cost me? Once you know that, packs, trays and bulk orders stop being confusing and can be compared fairly.

Formula and worked example

Comparing two pack sizes

A larger pack is not always cheaper per piece. Divide each price by its own quantity, then compare the unit prices. A pack of 24 at Rs 720 works out to Rs 30 per item, Rs 3.25 less than the pack of 12. Buying two of the smaller packs for 24 items would cost Rs 798, which is Rs 78 more.

Also consider how many items you will really use. If half of the large pack would go unused or expire, the lower unit price is not a saving, and the smaller pack may cost less overall.

Where the single-item figure helps

• Catering: Rs 18,000 for 60 plates is Rs 300 a plate, a figure you can compare between caterers.
• Resale: if one item costs Rs 33.25 and you sell it for Rs 45, you keep Rs 11.75 on each before other costs.
• Party and event budgets, school supplies and office stationery orders.
• Checking whether a multi-buy offer really lowers the cost per piece.

For resale, remember that this is only the purchase price. Add delivery, packaging and fees before deciding a selling price.

Schools and offices can use it to split a stationery order between classes or desks, and event planners can use it to estimate the cost of favours or gift bags.

Common mistakes with price per item

• Counting the wrong quantity, such as boxes instead of the pieces inside them.
• Comparing packs by total price alone.
• Rounding the unit price too early before multiplying back up.
• Ignoring different sizes. Items of different weight or capacity need a price per gram or litre instead.

Free items can confuse the count. A "buy 10, get 2 free" offer for Rs 500 gives 12 items, so the price per item is 500 / 12 = Rs 41.67, not Rs 50.

Rounding unit prices

Some results have long decimals, such as 614.2857. Show them to two decimals for money, but keep the exact value if you multiply further. A shop that charges per piece will round each sale, so the total may differ by a few paise.

When a unit price repeats, as 41.666 does, round up for budgeting, so you never plan to spend less than the real cost.