CalculatorCast
数学 金融 健康・フィットネス 日付と時間 単位変換 コンピューター 物理学 化学 建設 工学 統計学 教育 日常生活 生物学 自動車 料理・食品 スポーツ・フィットネス 不動産 写真 電気 農業 旅行 ビジネス
すべての計算機 お気に入り ()
English Español Français Deutsch Português Italiano Nederlands Polski Türkçe 日本語 한국어 Svenska Norsk Dansk Suomi עברית

退職資金計算機

毎月の積立による退職資金の推移を予測します。

はじめに

Retirement Calculator — Project your retirement corpus with monthly contributions. Enter Current age, Retirement age, Current savings, Monthly contribution, Expected return (%) to get an instant, accurate result.

計算式

Corpus = current savings grown at the annual rate for the remaining years, plus the future value of monthly contributions (annuity-due formula), summed together.

ステップごとの説明

  1. Enter the Current age.
  2. Enter the Retirement age.
  3. Enter the Current savings.
  4. Enter the Monthly contribution.
  5. Enter the Expected return (%).
  6. Click Calculate to see your result instantly.

実例

Example: With Current age = 30, Retirement age = 65, Current savings = 20000, Monthly contribution = 500, Expected return (%) = 7, the Retirement Calculator gives Corpus: 1119312.0062, Growth Of Current: 213531.6297, Growth Of Contributions: 905780.3765.

よくある質問

Does this adjust for inflation?
No, the projected corpus is in today's (nominal) currency terms, not inflation-adjusted.
What if I increase my monthly contribution later?
Re-run the calculator with the new contribution amount and your current age to see the updated projection.
What inputs does the Retirement Calculator need?
You'll need to provide: Current age, Retirement age, Current savings, Monthly contribution, Expected return (%). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Retirement Calculator?
The Retirement Calculator applies the formula exactly as calculated — Corpus = current savings grown at the annual rate for the remaining years, plus the future value of monthly contributions (annuity-due formula), summed together. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Are these results guaranteed?
No. The Retirement Calculator gives an estimate based on the numbers you enter and standard financial formulas — actual rates, fees, taxes, and terms vary by lender, institution, and jurisdiction, and can change over time. This is not financial advice; consult a qualified financial professional for decisions specific to your situation.
Is the Retirement Calculator free to use?
Yes, the Retirement Calculator is completely free, requires no signup, and runs instantly in your browser.

退職資金計算機について

The Retirement Calculator uses a real, verifiable formula — Corpus = current savings grown at the annual rate for the remaining years, plus the future value of monthly contributions (annuity-due formula), summed together. — so results are accurate every time, not an approximation.