Compound Interest Calculator
Project compound growth from principal, annual rate, term, and compounding frequency.
為什麼用這個工具
01Project how principal grows with compound interest over time, including final amount, interest earned, and effective APY based on annual rate and compounding frequency. Runs locally in your browser.
Compound Interest Calculator shows how reinvested interest changes a balance over months or years.
Use it to compare annual, quarterly, monthly, or daily compounding assumptions with the same principal and rate.
怎麼使用
02複製前快速檢查
03先確認輸入格式符合您的預期。
在把結果用於文件、連結、設定或訊息前快速掃一眼。
只複製您真正需要的輸出。
常見問題
04What does compounding frequency change?
More frequent compounding applies interest more often, so future interest is calculated on a slightly larger balance.
What is effective APY?
Effective APY is the annualized return after compounding is included, which can be higher than the stated annual rate.
Can I use this result as financial advice?
No. The result is an informational estimate based on the values you enter. Check the math, fees, taxes, and local rules before making financial decisions.
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