How Much Can You Borrow? Loan Payment Guide

Before any loan, know your monthly payment and total interest to judge whether you can really afford it.

Payment Formula (Amortization)

Monthly payment = P × r(1+r)ⁿ ÷ ((1+r)ⁿ − 1)

• P = principal, r = monthly rate, n = months

What Changes Your Payment

• Longer term → lower payment, more total interest
• Higher rate → significantly higher payment
• More principal → proportionally higher payment

Example Calculation

500,000 THB at 6.5% for 5 years (60 months):

• Payment ≈ 9,790 THB/month
• Total interest ≈ 87,400 THB

Safe Borrowing Rules

• All payments shouldn’t exceed 30-40% of income
• Shorter term = less interest paid
• Check prepayment fees before borrowing

Calculate Instantly

Use our Loan Payment Calculator — enter amount, rate, term for your payment. Free.