Find the price per kilogram of any package.
Converts the price into a per-kilogram rate, regardless of the actual pack size.
Price per kg: Price ÷ grams × 1000
This calculator converts the price of a pack weighed in grams into a price per kilogram. You enter what you paid and the weight in grams, and it divides and multiplies by 1000 to give ₹ per kg. It saves the mental gymnastics of comparing a 750 g pack with a 1 kg or a 200 g one.
Indian shoppers deal with gram weights all the time: 200 g biscuits, 500 g dal, 750 g detergent, 1.5 kg sugar, loose vegetables weighed at 250 g. Sellers often choose odd weights so that the shelf price looks lower than a round kilogram price. Bringing everything to a per-kg figure shows whether a pack is really cheaper, and makes it easy to compare with the per-kg rates you see at a sabzi mandi or wholesale market.
1. Read the net weight in grams from the pack. If it is given in kg, multiply by 1000 to get grams.
2. Note the price you pay, after any discount.
3. Divide the price by the weight in grams to get the price per gram.
4. Multiply by 1000 to get the price per kg: Price per kg = Price ÷ Grams × 1000.
5. Repeat for other packs and compare the per-kg figures directly.
Price divided by grams gives rupees per gram, which is usually a tiny number like ₹0.25. Since one kilogram is 1000 grams, the price of a kilogram is 1000 times the price of a gram. Multiplying by 1000 simply scales the rate up to a size people are used to reading. The same idea gives a price per 100 g if you multiply by 100 instead, which is how many packaged food labels express it.
The weight that matters is the net weight of the product, not the pack including its box or tin. Packaged goods list net weight on the label. For items sold in liquid or brine, such as some pickles or canned foods, a drained weight may also be shown, and that is the better figure for comparing the edible part. For loose goods, make sure the scale was zeroed with the container on it.
A common retail practice is to keep the price the same and quietly reduce the weight, for example from 100 g to 90 g. The sticker price does not change, but the price per kg rises by about 11%. Tracking the per-kg rate of items you buy regularly makes this visible. It also shows when a 'new bigger pack' is actually priced higher per kg than the old one.
Lakshmi finds a 750 g pack of roasted peanuts priced at ₹185 and wants to compare it with the ₹240 per kg rate at the wholesale shop nearby.
Answer: Price per kg ₹247
Entering the weight in kilograms in the grams box, which makes the per-kg price 1000 times too high.
Using gross weight including packaging for loose or boxed items.
Comparing a per-kg figure with a per-100 g label price without multiplying the label by 10.
Ignoring moisture differences, for example between fresh and dried products sold at very different per-kg prices.
Comparing different pack sizes of dal, rice, flour, nuts and snacks.
Checking vegetable and fruit prices bought by the 250 g or 500 g.
Spotting shrinkflation on regularly bought products.
Setting per-kg selling prices for homemade food, sweets or spices sold in small packs.
How do I compare a 500g pack to a 1kg pack?
Turning both into a price-per-kg figure puts them on equal footing, so you can compare them directly, no matter the pack size.