Savings Calculator — New Zealand
See how your savings grow with compound interest. Set a goal, compare rates, and maximize returns.
1 month1 year10 years
Your Savings After 12 Months
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Deposited
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Interest Earned
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Return %
0%
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Growth Over Time
Deposited With Interest
What If Simulator
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Compound vs Simple Interest
FAQ
How is compound interest calculated?
A = P × (1 + r/n)^(n×t). P = principal, r = annual rate, n = compounding frequency (12 for monthly), t = years.
What's the difference between compound and simple interest?
Simple interest: you earn interest only on your original deposit. Compound: you earn interest on your interest too — the difference grows massively over time.
How often should I check my savings?
Set it and forget it. Monthly contributions + compound interest do the work. Review quarterly to ensure your rate is still competitive.
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