Simple Interest Calculator - I = P × R × T Formula
Calculate simple interest (I = P × R × T) for a loan or investment in years, months, or days
使い方
- 1Enter principal and rate
Principal (P) is the amount borrowed or invested. Rate (R) is the annual percentage rate.
- 2Enter time
Enter the duration and pick the unit - years, months, or days.
- 3Read the result
Interest earned or owed, plus the total amount (principal + interest).
Simple Interest Calculator - I = P × R × T Formula について
Free simple interest calculator using the classic I = P × R × T formula. Enter principal, annual rate, and time in years, months, or days to instantly see the interest and total amount. Simple interest applies to short-term loans, some savings accounts, and academic problems where interest does not compound. Runs entirely in your browser. 712 Tools の Simple Interest Calculator - I = P × R × T Formula はモダンな JavaScript API を使って完全にブラウザ内で動作します - サーバーがあなたのデータを見ることは一切ありません。つまり、即時の結果、完全なプライバシー、アップロード制限なしです。
デバッグ、簡単な確認、あるいは本番のインシデント対応まで - このツールは何度でも無料で使えます。ウォーターマークなし、サインアップなし、ツール内広告なし。
よくある質問
What is the simple interest formula?
I = P × R × T ÷ 100, where P is principal, R is the annual rate as a percent, and T is time in years. Interest is not added to the principal - it does not compound.
How is simple interest different from compound interest?
Simple interest is always calculated on the original principal only. Compound interest is calculated on the growing balance (principal + previously-earned interest), so it grows faster over long periods.
Is my data uploaded?
No. All calculations run entirely in your browser.
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