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Weights and Measures Office

Consumer tips for products sold by weight

Learn how to ensure you receive the correct quantity when buying goods sold by weight.

Last updated 8 June 2026

How can consumers check that they receive the correct quantity when purchasing goods sold by weight?

1. When measuring the weight of goods

Digital grocery scale with a touchscreen showing weight, unit price, total price, and vegetable and fruit category buttons.

  • Look out for the ACCURACY Label on the instrument.

  • Check that the display indicates ‘zero’ before the goods are weighed.

  • Make sure you are charged for the net weight of the goods. Avoid weighing products with other items such as ice or heavy containers.

  • Check the receipt to make sure items’ prices are calculated correctly.

  • Alert the seller when the weight or price display is not clear or inaccurate. Get the seller to repeat the weighing or measuring if it is not done correctly.

2. When buying pre-packaged products

Six red tomatoes on a vine in a clear plastic tray with a label showing Tomatoes, 600g, $5.04.

  • Check goods with torn or tampered packaging to ensure net quantity is not less than that stated on the label.

  • The label should state the net content of the product using the metric unit system for example, kilogram (kg) for weight measurement.

  • Check the weight of the product on a weighing scale if you are doubtful of what is stated on the label.

3. When refueling at the petrol station

A red and gray fuel pump with a black nozzle, digital display panels, and price readouts.

  • Ensure the price and volume electronic display indicates ‘zero’ before dispensing fuel.

  • Look out for any fuel leak before dispensing. Alert the station manager immediately if a leak is observed.

  • Ensure the total price paid tally with the amount of fuel.