Loan Calculator — Monthly Payment & Interest
Work out the monthly payment and total interest from the loan amount, annual interest rate and term. Compare equal payments, equal principal and interest-only with a balloon at the end, and see the principal, interest and balance for every payment.
Enter a date of birth to see the age.
Age
- Next birthday in
- Days lived
- Korean year age
- Traditional Korean age
Since June 2023, Korean law, contracts and official documents use international age. Year age is only used where a law says so, such as military service and youth protection.
People born on February 29 are counted one year older on March 1 in non-leap years.
What is Y% of X?
Answer
X is what percent of Y?
Answer
Percent change from X to Y?
Answer
X increased or decreased by Y%?
Answer
Korean VAT (10%)
VAT is 10% of the supply value. Working back from a total, VAT is total × 10/110.
- Supply value
- —
- VAT
- —
- Total
- —
Computing the tax per item and rounding each before adding can differ slightly from the tax computed once on the total.
Days between two dates
- In weeks
- In months
Pick two dates to see how many days apart they are.
Add or subtract days (D-day)
Enter height and weight to see your BMI.
- Total interest
- Total paid
| No. | Payment | Principal | Interest | Balance |
|---|
About this tool
How to use it
- 1 Enter the loan amount, annual rate and term in years or months.
- 2 Choose a repayment method. Monthly payment, total interest and total paid appear.
- 3 Open the schedule to see principal, interest and balance for each payment.
Good to know
- Loan interest uses the annual rate divided by 12. Lenders that charge daily interest can differ by a few cents per payment
- Prepayment fees, grace periods and variable rates are not supported
- BMI is not a reliable measure for children and teens, during pregnancy, or for very muscular people
Frequently asked questions
Which method costs the least interest?
On the same terms, equal principal costs the least total interest and interest-only the most. Equal payments keep each month's amount the same.
My bank's schedule differs by a few cents.
This calculator uses the annual rate divided by 12. Banks that accrue interest daily can differ slightly.
Can I add fees, a grace period or a variable rate?
No. It models a fixed-rate loan repaid from the first month.
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