1. What is the Australian Coin Weight Calculator?

The Australian Coin Weight Calculator by Year helps determine the weight of Australian coins based on their minting year. Coin weights can vary by year due to changes in composition and design.

2. How Does the Calculator Work?

The calculator uses historical data tables:

Where:

• \( year \) — Minting year of the coin
• \( coin\_type \) — Denomination of the coin
• \( weight\_data \) — Historical database of coin weights

Explanation: The calculator matches your input year and coin type against historical records to find the exact weight.

3. Importance of Coin Weight Information

Details: Knowing exact coin weights is important for collectors, historians, and those verifying coin authenticity. Weight changes often reflect composition changes.

4. Using the Calculator

Tips: Enter the minting year (between 1800 and current year) and select the coin type from the dropdown menu.

5. Frequently Asked Questions (FAQ)

Q1: Why do coin weights change over time?
A: Coin weights change due to material composition adjustments, often responding to metal price fluctuations or technological improvements.

Q2: How accurate are these weight measurements?
A: Weights are based on official Royal Australian Mint specifications, with typical tolerances of ±0.1g.

Q3: What if my coin's weight doesn't match?
A: Minor variations are normal, but significant differences may indicate a counterfeit or damaged coin.

Q4: Are there special edition coins included?
A: Standard circulation coins are included. Special commemorative editions may have different weights.

Q5: Where does the weight data come from?
A: Data is compiled from official Royal Australian Mint publications and historical records.