Major supermarket chain Foodstuffs plans to introduce unit pricing, which allows easy comparison of the cost of different products, but says the system is more than a year away.
Woolworths, Foodtown and Countdown have used the system that displays cost of goods per unit of measurement for several years.
Foodstuffs, which runs the New World and Pak'nSave supermarkets, plans to adopt the system.
However managing director Tony Carter says developing new ticketing systems and changing the database will take about 14 months.
