finance
Simple Interest Calculator
Calculate simple interest and maturity amount for a principal, rate, and time.
Maturity amount
NPR 6,20,000
Total interest
NPR 1,20,000
Interest per year
NPR 40,000
How this works
Simple interest = principal × annual rate × years.
Worked example
NPR 5 lakh at 8% simple interest for three years earns NPR 1.2 lakh.
FAQ
What is the Simple Interest Calculator used for?
Calculate simple interest and maturity amount for a principal, rate, and time. It is intended for quick planning, checking, and everyday decisions.
Can I use the result for a final contract or design?
Use it as a planning estimate. Loans and deposits often compound or use fees, taxes, and changing rates.
How can I improve the accuracy?
Use measured quantities, current supplier or lender rates, the correct units, and compare the result with drawings, invoices, or professional advice where the decision is safety-critical.