Quick answer
Enter principal, annual rate, and term.
Formula
The shared finance engine uses the reducing-balance annuity formula.
Worked example
500,000 baht, 6%, 60 months
The result shows payment, interest, and total paid.
Choose this tool when
Use this page for a reducing-balance instalment estimate. Use Car Loan only when the quoted rate is explicitly a flat rate.
Assumptions and limitations
- Actual schedules may include fees, insurance, and different rounding.
Official sources
Last reviewed: 7 September 2026
Review again when the responsible authority changes the rule, rate, or effective period, or when this calculator's assumptions change.
Check the current Thai text and effective dates before relying on a result for tax, billing, employment, or legal purposes.