Question 1

Why monthly contributions matter so much

Accepted Answer

Time-in-market beats lump sums for most people. A $200/month contribution compounded for 30 years at 7% becomes around $245k — and only $72k of that is your money. The rest is the eighth wonder of the world doing its thing.

Question 2

What rate of return to use

Accepted Answer

Long-run real returns on diversified equity portfolios sit around 6–8% annually (after inflation it's 4–6%). Cash and bonds are lower. Pick a rate that matches what you're actually invested in — not what you wish you were.

Question 3

A worked example: starting age matters

Accepted Answer

Saving $300/month at 7% for 40 years lands at roughly $787,000. Starting ten years later — same $300/month for 30 years — only reaches $367,000. The difference is more than two times the outcome for a third less time. That's the cost of waiting.

Question 4

Real vs. nominal returns

Accepted Answer

A 7% return in a 3% inflation world is only 4% in real (today's purchasing power) terms. The numbers CalcWize shows are nominal — what your statement will say. To see what they're worth in today's money, deflate by your inflation assumption, or use the Retirement Planner's "today's money" toggle.

Question 5

Common mistakes

Accepted Answer

Plugging in the recent five-year US stock-market return is the classic over-estimate — bull markets distort. Use a long-run figure (50+ years across global equities) and lean conservative. People also forget tax: returns inside a tax-free wrapper (ISA, TFSA, Roth) compound un-taxed; everything else gets taxed annually or on withdrawal.

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계산 예시: 시작 나이의 중요성

실질 vs. 명목 수익률

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