JavaScript Source Code 2002: Calculators: Interest

Home Calculators Interest

Use JavaScript to find out just how much that new house or car is going to cost you each month. Enter values into the fields below to find out how much each monthly payment would be with the given number of payments, interest rate, and loan amount.

JavaScript Source Code 2002: Calculator: Interest Calculator
Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s). The script is yours!!!

  <HEAD> <SCRIPT LANGUAGE="JavaScript"> <! > <! >  </SCRIPT>  <BODY> <CENTER> <FORM method=POST> <TABLE border> <TR> <TD> <DIV ALIGN=CENTER> # of<br>Payments</DIV> </TD> <TD> <DIV ALIGN=CENTER>Interest<br>Rate</DIV> </TD> <TD> <DIV ALIGN=CENTER>Principal</DIV> </TD> <TD> </TD> <TD> <DIV ALIGN=CENTER> Monthly<br> Payment</DIV> </TD> </TR> <TR> <TD> <INPUT TYPE=TEXT NAME=payments SIZE=5 onChange=computeField(this)> </TD> <TD> <INPUT TYPE=TEXT NAME=interest SIZE=6 onChange=computeField(this)> </TD> <TD> <INPUT TYPE=TEXT NAME=principal SIZE=9 onChange=computeField(this)> </TD> <TD> </TD> <TD> <INPUT TYPE=TEXT NAME=payment SIZE=9 onChange=computeField(this)> </TD> <TD> <INPUT TYPE="button" VALUE="Compute" onClick=computeForm(this.form)> </TD> <TD> <INPUT TYPE="reset" VALUE="Reset" onClick=clearForm(this.form)> </TD> </TR> </FORM> <FORM method=POST> <TR> <TD> <INPUT TYPE=TEXT NAME=payments SIZE=5 onChange=computeField(this)> </TD> <TD> <INPUT TYPE=TEXT NAME=interest SIZE=6 onChange=computeField(this)> </TD> <TD> <INPUT TYPE=TEXT NAME=principal SIZE=9 onChange=computeField(this)> </TD> <TD> </TD> <TD> <INPUT TYPE=TEXT NAME=payment SIZE=9 onChange=computeField(this)> </TD> <TD> <INPUT TYPE="button" VALUE="Compute" onClick=computeForm(this.form)> </TD> <TD> <INPUT TYPE="reset" VALUE="Reset" onClick=clearForm(this.form)> </TD> </TR> </FORM> <FORM method=POST> <TR> <TD> <INPUT TYPE=TEXT NAME=payments SIZE=5 onChange=computeField(this)> </TD> <TD> <INPUT TYPE=TEXT NAME=interest SIZE=6 onChange=computeField(this)> </TD> <TD> <INPUT TYPE=TEXT NAME=principal SIZE=9 onChange=computeField(this)> </TD> <TD> </TD> <TD> <INPUT TYPE=TEXT NAME=payment SIZE=9 onChange=computeField(this)> </TD> <TD> <INPUT TYPE="button" VALUE="Compute" onClick=computeForm(this.form)> </TD> <TD> <INPUT TYPE="reset" VALUE="Reset" onClick=clearForm(this.form)> </TD> </TR> </TABLE> </FORM> </CENTER>