National Measurement Institute

We are the national authority on measurement. We develop and maintain Australia’s measurement system. We deliver measurement policy, science and regulation for a fair, safe, healthy and competitive Australia.

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Trade measurement

Weights and measures in trade

Trade measurement laws apply to all retail and wholesale transactions where measurement determines price. Find information about selling specific goods.

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Nov 2025 National Measurement Institute

Remaking and sunsetting legislative instruments for measurement: have your say

We invite public feedback on the National Measurement Institute’s review of instruments under the National Measurement Act 1960. Submissions are open until 24 December.
Nov 2025 National Measurement Institute

Ensuring consumers get what they pay for

The latest report from the National Measurement Institute (NMI) looks at trade measurement activities in sectors affecting cost of living, such as bread, baked goods and fuel.
Oct 2025 National Measurement Institute

Shaping Australia's measurement system

Bill Loizides leads legal metrology at the National Measurement Institute (NMI). His insights detail how NMI is redefining legal measurement frameworks in a digitising world.