fin·calc

Monthly Investment Calculator — Japan

See how a monthly investment grows over time at Japan's historical returns. No signup, no tracking.

%
yrs
Future valueï¿¥2,922,728
Investedï¿¥1,800,000
Returnsï¿¥1,122,728
Totalï¿¥2,922,728
Calculated live on this page · reference rates June 2026. Open the full tool →

Where to invest in Japan

Nikkei 225 long-term ≈ 5–7% nominal, global ETFs ≈ 7–10% in JPY terms. New NISA annual limit ¥3.6M (¥1.8M accumulation). Platforms: SBI Securities, Rakuten Securities, Monex.

Returns are long-term historical averages, not guarantees - markets fall as well as rise. Invest for the long term and diversify.

The power of compounding

Investing ï¿¥10,000 per month for 15 years at 6% p.a.:

That is roughly 1.6× your money - most of it from compounding. Scale the ï¿¥10,000 to your own monthly amount, and remember that starting earlier matters more than investing more.

How to start - and stay - invested in Japan

Frequently Asked Questions

How does a monthly investment work in Japan?

You invest a fixed amount each month into funds or an index. You buy more units when prices are low and fewer when high (cost averaging), and returns compound over time.

What return can I expect in Japan?

Long-term historical equity returns are around 6% per year here, though any single year can be sharply up or down. Nikkei 225 long-term ≈ 5–7% nominal, global ETFs ≈ 7–10% in JPY terms. New NISA annual limit ¥3.6M (¥1.8M accumulation). Platforms: SBI Securities, Rakuten Securities, Monex.

How much do I need to start investing in Japan?

Most platforms let you start small and increase later. Setting up an automatic monthly investment builds discipline and smooths out market timing.

Should I invest a lump sum or monthly in Japan?

Investing monthly spreads your entry across market ups and downs (cost averaging) and is easier to budget. A lump sum can do better in a steadily rising market but carries more timing risk.

Is investing better than a fixed deposit in Japan?

Investing targets higher long-term growth but carries market risk; fixed deposits are safer but usually return less. Many people hold both, matched to their time horizon.

Calculate yours now →

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