🏦 Deposit Compound Interest Calculator

Time Deposit Interest Calculator

Calculate compound interest on fixed deposits. Compare simple vs compound interest, and monthly vs annual compounding.

💰Deposit Compound Interest Definition

Compound interest adds interest to principal, then earns interest on that total. With same annual rate, more frequent compounding (monthly > quarterly > yearly) yields higher returns.

Interest Earned
+₩0
Effective Annual Rate
0%
Maturity Amount
0
* Actual interest excludes applicable taxes.

📝How to Use

1

Enter principal

Input the deposit amount.

2

Enter annual rate

Input the bank's offered annual rate.

3

Set deposit period

Choose how many years to deposit.

4

Select compounding

Choose monthly, quarterly, or yearly compounding.

📊Examples

1-Year Fixed

$10,000, 4%, yearly

Maturity $10,400 (interest $400)

3-Year Fixed

$10,000, 4%, monthly

Maturity about $11,270

Large Deposit

$50,000, 3.5%, 2 years

Maturity about $53,580

Frequently Asked Questions

Difference between simple and compound?

Simple interest only on principal. Compound adds interest to principal. Compound is better for longer terms.

Are monthly compound deposits available?

Some savings accounts and CMA offer monthly compounding. Fixed deposits are usually simple interest.

What is effective annual rate?

Actual annual return including compound effect. 4% monthly compound = 4.07% effective.

Deposit insurance?

Varies by country. Check your local deposit insurance limits.

💡Deposit Tips

  • Same rate, shorter compounding period is better.
  • Regular savings utilize compound effect better than fixed deposits.
  • Look for promotional deposit rates.
  • Consider tax on interest income when calculating.

📚 国別の計算ガイド

計算ロジック

金融・ローン・比率・単位変換の公開標準を使用します。

参照範囲

公開された基準と各国で一般的な運用慣行を参照します。

前提条件

税率・手数料・上限は地域や金融機関で異なります。

結果の読み方

結果は基準シナリオとして活用してください。最終判断前に金融機関見積と税務条件を比較してください。

ロケール既定値

通貨: JPY

単位: metric

税計算モデル: US payroll estimate

法規上の注意

本ツールは国別プリセットによる概算です。実際の契約条件や法的上限は金融機関・地域法令により異なる場合があります。

推奨アクション

  • 申込前に最低2〜3社の条件を比較してください。
  • 手数料・税務・繰上返済条項を書面で再確認してください。
  • 金利+1〜2%と収入減少のストレスケースも確認してください。

実際の契約前に、必ず現地機関の最新条件を確認してください。

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