ToolCubbySimple Interest Calculator
Find the simple interest and total amount for any principal, rate and time — instantly and privately.
How to use
- Enter the principal amount.
- Enter the annual interest rate (as a percentage).
- Enter the time period in years, then click Calculate.
Formula
Simple Interest (I) = P × r × t ÷ 100 (rate in %, time in years)\nTotal amount = Principal + Interest
FAQ
What is the simple interest formula?
Interest = Principal × Rate × Time (I = PRT), where the rate is annual and time is in years.
Simple vs compound interest?
Simple interest is calculated only on the original principal; compound interest also earns interest on prior interest.
Is it private?
Yes — everything runs in your browser.
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More FAQs
Are these calculators free to use?
Yes, every calculator is completely free, with no signup and no limits.
Do I need an account or install anything?
No. Everything runs in your browser — no install, no account.
Related searches
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