Amortized Loans

This program calculates the periodic payments and other attributes of conventional amortized loans (and other constant cash flows).

You can use other programs to analyze other cash flows:

Bonds: a constant cash flow plus a final lump-sum; for example, $50/year for 20 years + $1000 after 20 years
Annuities: a constant or growing cash flow; for example, $100 the first year and 5% more each year for 30 years
Stocks (constant-dividend-growth): a growing cash flow; for example, $10 the first year and 5% more each year forever

Use the radio button to select the factor you want calculated, and enter numerical values for the other four attributes in the first table. If you want to see some of the loan payments, enter payment numbers in the first column of the second table.

Amount borrowed (if $100,000, enter 100000):
Annual interest rate on loan (if 14.25%, enter 14.25):
Number of payments per year (if monthly, enter 12):
Total number of payments (if 60 monthly payments, enter 60):
Size of periodic payments (if $1,000/month, enter 1000):

payment number	total payment	interest payment	principal payment	unpaid balance