Work out price per kilogram instantly with clear inputs, formula shown and shareable results.
Unit pricing removes the effect of package size: price divided by weight, scaled to a kilogram. It is the only reliable way to compare packages, because shrinking the pack while holding the price is the most common form of hidden price rise.
Unit price
price per kg = package price / weight (g) x 1000
No. Promotions on small packs and premium pricing on family sizes both break the assumption, which is why the shelf unit price is worth reading.
Include it. A larger pack at a lower unit price is no bargain if a third goes off before you use it.