Question 1

What does $20,000 grow to at 6% for 5 years?

Accepted Answer

$20,000 invested at 6% annual compound interest for 5 years grows to $26,765. Your original investment earns $6,765 in interest — a 33.8% total return and a 1.34× multiplier on your money.

Question 2

How long does it take to double money at 6%?

Accepted Answer

At 6% annual compound interest, your money doubles approximately every 12 years (the Rule of 72: 72 ÷ 6 = 12). Over 5 years, $20,000 has the potential to double 0.4 times.

Question 3

Is 6% a realistic return?

Accepted Answer

6% is a moderate return that aligns with long-term historical averages for diversified share portfolios. The ASX 200 has returned around 9–10% p.a. including dividends historically, so 6% is realistic over long periods after accounting for fees and portfolio mix.

Question 4

What's the effect of adding regular contributions?

Accepted Answer

These figures show a one-time lump sum of $20,000 with no additional contributions. Adding regular contributions compounds the growth dramatically. For example, adding $200/month to $20,000 at 6% 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 6% return and 2.5% inflation, your real return is approximately 3.5% p.a. In real terms, $26,765 in 5 years would buy meaningfully less than it does today.

Year	Balance	Interest
Yr 1	$21,200	+$1,200
Yr 2	$22,472	+$1,272
Yr 3	$23,820	+$1,348
Yr 4	$25,250	+$1,429
Yr 5	$26,765	+$1,515

Rate	Final balance	Interest earned	Multiplier
4%	$24,333	$4,333	1.22×
5%	$25,526	$5,526	1.28×
6% ◀	$26,765	$6,765	1.34×
7%	$28,051	$8,051	1.40×
8%	$29,387	$9,387	1.47×
9%	$30,772	$10,772	1.54×
10%	$32,210	$12,210	1.61×

Year	Balance	Interest this year	Total interest	Growth
Year 1	$21,200	+$1,200	$1,200	1.06×
Year 2	$22,472	+$1,272	$2,472	1.12×
Year 3	$23,820	+$1,348	$3,820	1.19×
Year 4	$25,250	+$1,429	$5,250	1.26×
Year 5	$26,765	+$1,515	$6,765	1.34×

Year	Balance	Interest
Yr 1	$21,200	+$1,200
Yr 2	$22,472	+$1,272
Yr 3	$23,820	+$1,348
Yr 4	$25,250	+$1,429
Yr 5	$26,765	+$1,515

$20,000 at 6% for 5 Years

How $20,000 grows at 6%

Year-by-year projection

Growth chart

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