Loan payment

Calculate reducing-balance loan payments, extra repayments and a reconciled monthly repayment schedule.

One-off extra payments

Inputs stay on this page and are not saved or sent to analytics.

Result

Enter your assumptions and calculate payments and remaining debt.

Monthly model: interest and payments round to cents; the final payment clears the balance. Extra payments follow interest and regular payment. Total payments already include extras.

This is an estimate, not a loan offer or an exact lender statement.

How to use this calculator

01

Set your inputs and units

Enter amounts in THB and choose a period and rate basis that match the scenario you want to model.

02

Check the assumptions

Review contribution timing, day-count basis or reserve duration. Financial products do not all use the same rules.

03

Calculate and compare

Read the result and table, then change inputs to compare. Copy the result or reset without leaving this page.

A worked example

Illustrative calculation

Borrowing 12,000 THB at 0% for 12 months with no fees requires 1,000 THB per month.

Compare a second scenario

Copy your first result, then change only the amount or duration to see how that assumption changes the outcome.

Common questions

Where does my information go?

Calculations run in your browser. Financial inputs are neither saved locally nor sent to analytics. Reloading restores the initial values.

Does this match a bank statement or guarantee a return?

This is an estimate under your assumptions, not a guaranteed return. Actual payment dates, fees, taxes and contractual rounding can change the result.