年齢計算
年・月・日単位で年齢を計算します。
計算ツール
積立投資計算
定期的な積立投資の成長を試算します。
通貨: JPY · 金額はこの通貨で表示されます。為替換算は行いません。
入力した利率と記載の計算式を使用します。手数料と税は含みません。
入力内容
UtilBrix が提供結果
Estimated future value
￥1,161,695
- Total invested
- ￥600,000
- Estimated returns
- ￥561,695
Invested · 51.6%Returns · 48.4%
Assumes investments at the beginning of each month and monthly compounding. Returns are illustrative, not guaranteed.
詳しい方法と使用例は英語で提供しています。
Step-by-step instructions (English)
- Enter the planned monthly contribution and investment period.
- Enter an illustrative annual return; use the step-up field only if contributions will increase each year.
- Compare total contributions with projected growth, then rerun with a lower assumed return.
計算式と方法
This projection assumes a deposit at the beginning of each month and compounds the balance at the annual rate divided by 12. A step-up increases the deposit once after each group of 12 contributions. Total returns equal projected value minus all contributions.
使用例
Investing 5,000 currency units monthly for 10 years means 600,000 currency units in contributions. At an illustrative 12% annual rate, the beginning-of-month model projects approximately 1,161,695 currency units. Actual returns will differ.
When this tool is useful
Explore the effect of contribution size, investment duration, and annual contribution increases. Comparing several assumptions helps separate what you contribute from the hypothetical growth generated by the model.
Common mistakes and limitations
- The rate is an assumption, not a forecast or promised return. Real investment values can fall.
- This model deposits at the beginning of each month; end-of-month deposits produce a different projection.
Practical questions about this tool (English)
Does annual step-up increase the investment return?
No. Step-up increases the amount you contribute after each year of monthly deposits. It changes cash contributions, while the assumed return rate remains a separate input.
Are taxes and fund fees included?
No. The projection compounds the selected rate without modeling taxes, fees, inflation, or changing market returns. It is an illustration, not a product recommendation.
References and further reading
These figures are estimates for information only, not financial or tax advice. Actual terms, fees, rates, and returns can differ. Read the financial disclaimer.