Question 1

What does $5,000 grow to at 9% for 10 years?

Accepted Answer

$5,000 invested at 9% annual compound interest for 10 years grows to $11,837. Your original investment earns $6,837 in interest — a 136.7% total return and a 2.37× multiplier on your money.

Question 2

How long does it take to double money at 9%?

Accepted Answer

At 9% annual compound interest, your money doubles approximately every 8 years (the Rule of 72: 72 ÷ 9 = 8). Over 10 years, $5,000 has the potential to double 1.3 times.

Question 3

Is 9% a realistic return?

Accepted Answer

9% is an optimistic but achievable return for growth-oriented share portfolios over long time horizons. The ASX 200 has averaged around 9–10% p.a. including dividends. A 9% assumption requires patience and comfort with short-term market volatility.

Question 4

What's the effect of adding regular contributions?

Accepted Answer

These figures show a one-time lump sum of $5,000 with no additional contributions. Adding regular contributions compounds the growth dramatically. For example, adding $200/month to $5,000 at 9% for 10 years would result in a significantly larger final balance. Use the interactive calculator above to model your own contribution amount.

Question 5

How does inflation affect this result?

Accepted Answer

This calculator shows nominal returns — the dollar figures before adjusting for inflation. Australia's historical inflation rate is around 2–3% per year. To estimate real purchasing power, subtract the inflation rate from your return: at 9% return and 2.5% inflation, your real return is approximately 6.5% p.a. In real terms, $11,837 in 10 years would buy meaningfully less than it does today.

Year	Balance	Interest
Yr 1	$5,450	+$450
Yr 2	$5,941	+$491
Yr 3	$6,475	+$535
Yr 4	$7,058	+$583
Yr 5	$7,693	+$635
Yr 6	$8,386	+$692
Yr 7	$9,140	+$755
Yr 8	$9,963	+$823
Yr 9	$10,859	+$897
Yr 10	$11,837	+$977

Rate	Final balance	Interest earned	Multiplier
4%	$7,401	$2,401	1.48×
5%	$8,144	$3,144	1.63×
6%	$8,954	$3,954	1.79×
7%	$9,836	$4,836	1.97×
8%	$10,795	$5,795	2.16×
9% ◀	$11,837	$6,837	2.37×
10%	$12,969	$7,969	2.59×

Year	Balance	Interest this year	Total interest	Growth
Year 1	$5,450	+$450	$450	1.09×
Year 2	$5,941	+$491	$941	1.19×
Year 3	$6,475	+$535	$1,475	1.30×
Year 4	$7,058	+$583	$2,058	1.41×
Year 5	$7,693	+$635	$2,693	1.54×
Year 6	$8,386	+$692	$3,386	1.68×
Year 7	$9,140	+$755	$4,140	1.83×
Year 8	$9,963	+$823	$4,963	1.99×
Year 9	$10,859	+$897	$5,859	2.17×
Year 10	$11,837	+$977	$6,837	2.37×

Year	Balance	Interest
Yr 1	$5,450	+$450
Yr 2	$5,941	+$491
Yr 3	$6,475	+$535
Yr 4	$7,058	+$583
Yr 5	$7,693	+$635
Yr 6	$8,386	+$692
Yr 7	$9,140	+$755
Yr 8	$9,963	+$823
Yr 9	$10,859	+$897
Yr 10	$11,837	+$977

$5,000 at 9% for 10 Years

How $5,000 grows at 9%

Year-by-year projection

Growth chart

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