Mortgage or Loan Calculator

Enter Loan Information:
1) Amount of the loan:
2) Annual percentage rate of interest:
3) Repayment period in years: months: Interest on interest
4) Date of loan MM DD YY:
US Rule
5) 1st Payment MM DD YY:
Days to 1st payment:
Payment information:
6) Your monthly payment will be:
7) Your total payments will be:
8) Your total interest payments will be:
9) Number of payments:
10) Your last payment will be:
To compute the payment amount, fill in lines 1, 2, and 3; Compute.
To compute an interest rate, fill in lines 1, 3, and 6; Compute Interest Rate then Compute.
To compute a principal, fill in lines 2, 3, and 6; then Compute Principal. Fills in mean, alerts for range.
To compute the duration of a loan, fill in lines 1, 2, and 6; then Calc Time. Alert box only.
Repayment months may be > 11. If so it will be converted to years and months, i.e. 21 will be 1 yr 9 mo.
You can specify a monthly amount in line 5 and then press the TAB key.


To enter, change, or remove the default interest rate and final closure date: Enter defaults.

For a payback schedule of every other week click mortgagebw.
For a monthly schedule of constant 30 days, 10.5 hours (365.25 / 12) try Mortgage Test. Theory behind this page.