Compound Interest Pro vs 先のこし | Sakinokoshi

Compound Interest Professional is a highly precise asset management simulator that lets you calculate savings contributions, withdrawals, goal achievement, required rates, and more. It visualizes your future asset growth with graphs and tables, so you can track principal, interest, and balances for each period. Key Features 1. Future Value Calculator Enter your initial principal, regular contributions, and interest rate to project your total future assets. Add a withdrawal amount to simulate scenarios where you draw down principal while continuing to invest. 2. Contribution/Withdrawal Calculator Figure out how much to save monthly (or annually) to hit your target—or how much you can withdraw each period. 3. Time to Goal Calculator Calculate how many years it will take to reach your goal based on your contribution amount and interest rate. Supports withdrawal scenarios too. 4. Required Rate Calculator Find the annual return rate needed to achieve your target amount. Features - Results are visualized with graphs and tables, so you can easily check details by period. - Supports annual/monthly compounding, as well as accumulation and withdrawals. - High-precision decimal calculations minimize errors. Flexible and Accurate • Professional-grade precision using high-accuracy decimal maths — no rounding errors. • Choose between yearly or monthly compounding and contribution frequencies. • Instant recalculation: change any figure and the results update immediately. • No registration, no ads, no tracking — your data stays on your device. Use Cases - Roth IRA, traditional IRA, and SEP IRA contribution planning - 401(k) and employer match optimization - HSA triple tax advantage projections - 529 plan for education savings (state tax benefits) - Roth conversion ladder for early retirees (FIRE) - High-yield savings account (HYSA) comparison - CD ladder strategies and Treasury planning - Mortgage payoff vs investment decision modeling - DCA into ETFs, index funds, or REITs - 4% rule and safe withdrawal rate scenarios An asset management tool to accurately and simply experience the full power of compound interest. Example Scenarios “If I invest $500 per month for 20 years at 6%, how much will I have?” “How much can I withdraw monthly from $300,000 at 4% for 15 years?” “What rate do I need to reach $1M in 25 years?” “How long will my savings last if I withdraw $2,000 monthly?” "If I max out my Roth IRA ($7,000) annually for 30 years at 7%, how much at age 65?" "If I contribute $1,000/month to my 401(k) with 50% employer match, what's the balance at retirement?" "If I open a 529 plan with $200/month for 18 years, how much for college?" "How long will my HYSA last withdrawing $3,000/month at 4.5% APY?" "What's the safe withdrawal rate from $1M to last 30 years?" 《 About Using the App 》 You may use this service only if you agree to the Terms of Service. The moment you start using the app, a service agreement is established between you and our company. If you're a minor, please use this service only with the consent of your parent or legal guardian.Terms of Use: https://cicalc-74e14.web.app/en/info/#terms Privacy Policy: https://cicalc-74e14.web.app/en/privacy

■ 未来価値の即時計算 金額を入力するだけで、5年後・10年後・20年後・30年後の価値をすぐに確認できます。 買う前の一瞬に、判断材料を持てます。 ■ 4つの見方で比較 ・そのまま：単純な積み上げで確認 ・かため：複利を前提にした見方 ・標準：現実的な感覚で見直す基準 ・強め：労働時間の感覚で見直す基準 ■ のこしたお金を記録 「のこす」「買う」「保留」の3択で、迷った瞬間をシンプルに記録できます。 複雑な家計簿入力は不要です。 ■ 成長グラフで可視化 のこしたお金が時間とともにどう積み上がるかをグラフで確認できます。 小さな積み重ねが、続けるモチベーションになります。 ■ オフラインで使える アカウント登録は不要。 入力したデータは端末内に保存され、気軽にすぐ使えます。 【こんな方におすすめ】 ・衝動買いを少しずつ減らしたい方 ・将来のためにお金をのこしたい方 ・家計簿は苦手だけど、支出は見直したい方 ・節約を我慢ではなく、納得で続けたい方 【安心して使える設計】 本アプリは、アカウント登録不要で利用できます。 入力したデータは端末内に保存され、外部サーバーへの送信は行いません。 【ご利用にあたって】 本アプリが表示する将来価値や試算結果は、入力内容と設定条件に基づく参考情報です。 投資助言、資産運用アドバイス、将来の成果の保証を行うものではありません。