Quick answer
Enter principal, annual rate, and years.
Formula
Interest = principal × rate × years; total = principal + interest.
Worked example
100,000 baht at 5% for 3 years
Interest is 15,000 baht and total is 115,000 baht.
Choose this tool when
Use this page only when interest stays based on the original principal. Use Compound Interest when returns join principal for later periods.
Assumptions and limitations
- Check contract terms, fees, rounding rules, and current requirements before making an important decision.