Question 1

What does $2,000 grow to at 10% for 5 years?

Accepted Answer

$2,000 invested at 10% annual compound interest for 5 years grows to $3,221. Your original investment earns $1,221 in interest — a 61.1% total return and a 1.61× multiplier on your money.

Question 2

How long does it take to double money at 10%?

Accepted Answer

At 10% annual compound interest, your money doubles approximately every 7.2 years (the Rule of 72: 72 ÷ 10 = 7.2). Over 5 years, $2,000 has the potential to double 0.7 times.

Question 3

Is 10% a realistic return?

Accepted Answer

10% 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 10% 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 $2,000 with no additional contributions. Adding regular contributions compounds the growth dramatically. For example, adding $200/month to $2,000 at 10% for 5 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 10% return and 2.5% inflation, your real return is approximately 7.5% p.a. In real terms, $3,221 in 5 years would buy meaningfully less than it does today.

Year	Balance	Interest
Yr 1	$2,200	+$200
Yr 2	$2,420	+$220
Yr 3	$2,662	+$242
Yr 4	$2,928	+$266
Yr 5	$3,221	+$293

Rate	Final balance	Interest earned	Multiplier
4%	$2,433	$433	1.22×
5%	$2,553	$553	1.28×
6%	$2,676	$676	1.34×
7%	$2,805	$805	1.40×
8%	$2,939	$939	1.47×
9%	$3,077	$1,077	1.54×
10% ◀	$3,221	$1,221	1.61×

Year	Balance	Interest this year	Total interest	Growth
Year 1	$2,200	+$200	$200	1.10×
Year 2	$2,420	+$220	$420	1.21×
Year 3	$2,662	+$242	$662	1.33×
Year 4	$2,928	+$266	$928	1.46×
Year 5	$3,221	+$293	$1,221	1.61×

Year	Balance	Interest
Yr 1	$2,200	+$200
Yr 2	$2,420	+$220
Yr 3	$2,662	+$242
Yr 4	$2,928	+$266
Yr 5	$3,221	+$293

$2,000 at 10% for 5 Years

How $2,000 grows at 10%

Year-by-year projection

Growth chart

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