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Calculate how your savings grow with compound interest over time
See how regular contributions and compound interest can grow your savings. This calculator shows the power of starting early and making regular deposits.
Regular amount you add each month (can be $0)
How often interest is calculated and added to your balance
Final Balance
$94,111
Interest Earned
$24,111
Total Contributions
$70,000
Growth Percentage
34.4%
Year 1
Contributions: $16,000
$16,651
+$651 interest
Year 2
Contributions: $22,000
$23,642
+$991 interest
Year 3
Contributions: $28,000
$30,991
+$1,349 interest
Year 4
Contributions: $34,000
$38,716
+$1,725 interest
Year 5
Contributions: $40,000
$46,837
+$2,120 interest
Year 6
Contributions: $46,000
$55,372
+$2,536 interest
Year 7
Contributions: $52,000
$64,345
+$2,972 interest
Year 8
Contributions: $58,000
$73,776
+$3,431 interest
Year 9
Contributions: $64,000
$83,690
+$3,914 interest
Year 10
Contributions: $70,000
$94,111
+$4,421 interest
Compound interest is interest calculated on both your initial deposit and the accumulated interest from previous periods. Your money grows exponentially because you earn interest on your interest.
Einstein allegedly called compound interest the 'eighth wonder of the world'. The earlier you start and the longer you save, the more dramatic the compounding effect.
ATO rates checked against official sources — verified 3 July 2026
Estimates only. Not financial or tax advice. Full disclaimer for your rights and our limitations of liability.
Rates and thresholds last updated for the 2026–27 financial year.