Interest Calculator (Simple & Compound)
PopularCalculate simple and compound interest returns with flexible compounding frequency
About Interest Calculator (Simple & Compound)
Interest Calculator computes both Simple Interest (SI) and Compound Interest (CI) returns for loans, fixed deposits, and savings investments.
Calculate total interest earned, final maturity amount, and compare annual, semi-annual, quarterly, or monthly compounding frequencies.
Common Use Cases
- Comparing simple vs compound returns before choosing a savings or FD account
- Estimating loan interest cost before committing to a lender
- Projecting investment growth over multiple years with different compounding frequencies
How to Use Interest Calculator (Simple & Compound)
- Enter the principal amount, interest rate, and time period.
- Choose Simple or Compound Interest, and select a compounding frequency.
- View the total interest earned and final maturity amount instantly.
Real-World Examples
Principal: NPR 100,000, Rate: 8%, Time: 5 years, Compounding: AnnualMaturity Amount: NPR 146,933Important Notes & Limitations
- Assumes a fixed interest rate for the entire tenure
- Does not account for tax deductions on interest earned
Privacy & Data Security
Interest Calculator (Simple & Compound) processes all operations 100% locally in your web browser memory. Your files, text snippets, and generated outputs are never stored, logged, or uploaded to any remote server.
Frequently Asked Questions
Simple Interest is calculated strictly on the initial principal, whereas Compound Interest adds earned interest back to the principal for exponential growth.
Select Annual, Semi-Annual, Quarterly, Monthly, or Daily compounding cycles.
Yes, an intuitive visual chart breaks down initial principal vs net interest earned.
Yes, enter tenure in exact years, months, or days for precise calculation.