AomlyFree calculator
Installment calculator
Enter the price, any down payment, the number of months and the interest rate. See what you'll pay each month, how much interest that adds, and the real yearly rate behind a flat-rate plan.
A flat rate, the way Thai installment plans and car loans quote it: interest on the full amount for the whole time, split evenly across the months.
A flat 5% a year costs about the same as 9% a year on a loan that charges interest only on what's left.
Installments that end on time
Add an installment to Aomly as its full amount, months and rate. It works out the monthly payment, takes it out of your daily budget, and shows the month it ends, when your monthly bills go down.
- The monthly payment, worked out for you
- Each installment's last month on your timeline
- On a credit card, it lands in the right statement
Getting a good installment
Check the real rate
A flat rate looks small because it charges interest on the full price for the whole time, even as you pay it down. The real yearly rate is close to double.
0% isn't always free
Some 0% plans add a fee, or a higher price than paying cash. Compare the total with the cash price.
Shorter costs less
Fewer months means a bigger monthly payment but less interest. Pick the shortest you can afford every month.
Count it before you buy
Add the monthly payment to your bills first and see what's left for each day. If the daily budget gets too tight, wait or pick something cheaper.
Questions
What is a flat interest rate?
Interest worked out on the full amount you borrow, for the whole time, then split evenly across the months. Thai installment plans, car loans and many personal loans quote rates this way.
What is the real yearly rate?
The rate a loan would need if it charged interest only on what you still owe (the effective rate). It's the fairer number for comparing a flat-rate plan with a credit card or a bank loan.
How is the monthly payment worked out?
The price less the down payment, plus interest, divided by the number of months. Interest is that amount × the flat rate × the years. For example ฿30,000 over 10 months at 5% a year: (30,000 + 1,250) ÷ 10 = ฿3,125 a month.
Is it free? Is anything saved?
It's free, with no account to make. The numbers stay on this page and aren't sent anywhere.