Simple & Compound Interest
10 toolsCalculate simple or compound interest.
Runs in your browser — your files and text stay on your device
A complete calculator toolkit — percentage, BMI, loan EMI with amortization schedule, tip splitting, simple/compound interest, discount/markup, GST/sales tax, SIP investment growth, GPA/CGPA, and descriptive statistics. Instant results, nothing stored or sent anywhere.
PercentageBMI CalculatorLoan EMITip CalculatorSimple & Compound InterestDiscount / Markup CalculatorGST / Sales Tax CalculatorSIP / Investment CalculatorGPA / CGPA CalculatorMean / Median / Std. Deviation
Interest earned
2,400
Total amount
12,400
How to use this tool
- 1Choose Simple or Compound.
- 2Enter principal, rate, and time.
- 3See interest earned and total update instantly.
Frequently asked questions
What's the difference?
Simple: I = P × r × t ÷ 100. Compound (annual): Total = P × (1 + r/100)ᵗ.
Is my data uploaded anywhere?
No — computed entirely in your browser.