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Mortgage Calculator for Your Site

Feel free to use our Mortgage Calculator on your website. The example implementation is shown below. It is possible to alter the color, font, and certain parts of the code to best fit your website.

Loan Amount		$
Loan Term		years
Rate		%
Property Tax		$/year
PMI Insurance		$/year
Other Cost		$/year

Installation Instructions

To install, copy all of the code in the following text area into the html source code of your website. Note that NBcalculator.com permits the changing of the HTML and CSS to make the calculator fit the style of your site, but not any of the JavaScript. See the Terms of Use for further detail.

TERMS OF USE
BY COPYING THE CODE FOR USE, YOU AGREE:
1. THAT THE MATERIALS ARE PROVIDED "AS IS" AND WITHOUT WARRANTIES OF ANY KIND
2. NOT TO CHANGE ANY OF THE JAVASCRIPT CODE, INCLUDING THE LICENSE TEXT
3. NOT TO REMOVE THE LINE OF TEXT "powered by NBcalculator.com"
4. THAT THE COPYRIGHT BELONGS TO NBcalculator.com
5. NOT TO REMOVE THE TERMS OF USE

<script>
/*****************************************
(C) https://www.NBcalculator.com all right reserved.
*****************************************/
function gObj(t){return document.all?"string"==typeof t?document.all(t):t.style:document.getElementById?"string"==typeof t?document.getElementById(t):t.style:null}function trimAll(t){for(;" "==t.substring(0,1);)t=t.substring(1,t.length);for(;" "==t.substring(t.length-1,t.length);)t=t.substring(0,t.length-1);return t}function isNumber(t){return!((t+="").length<1)&&!isNaN(t)}function formatAsMoney(t){t=t.toString().replace(/\$|\,/g,""),isNaN(t)&&(t="0"),sign=t==(t=Math.abs(t)),t=Math.floor(100*t+.50000000001),cents=t%100,t=Math.floor(t/100).toString(),cents<10&&(cents="0"+cents);for(var e=0;e<Math.floor((t.length-(1+e))/3);e++)t=t.substring(0,t.length-(4*e+3))+","+t.substring(t.length-(4*e+3));return(sign?"":"-")+"$"+t+"."+cents}function formatNum(t){if(outStr=""+t,t=parseFloat(outStr),10<outStr.length&&(outStr=""+t.toPrecision(10)),-1<outStr.indexOf(".")){for(;"0"==outStr.charAt(outStr.length-1);)outStr=outStr.substr(0,outStr.length-1);return"."==outStr.charAt(outStr.length-1)&&(outStr=outStr.substr(0,outStr.length-1)),outStr}return outStr}function showquickmsg(t,e){e&&(t="<font color=red>"+t+"</font>"),gObj("coutput").innerHTML=t}var dataArray=new Array,theLoanTerm=0,delayShow=!0;function calc(){showquickmsg("calculating...",!0),gObj("resulttable").innerHTML="",setTimeout("process()",2)}function process(){if(Bv=gObj("cloanamount").value,fv=gObj("cloanterm").value,vs=gObj("cinterestrate").value,Xd=gObj("cpropertytaxes").value,KA=gObj("cpmi").value,Ti=gObj("cothercost").value,isNumber(Bv))if(isNumber(fv))if(fv<1||50<fv)showquickmsg("loan term need to be a number between 0 and 50",!0);else if(isNumber(vs))if(vs<-200||200<vs)showquickmsg("interest rate needs to be between -200 and 200",!0);else if(isNumber(Xd))if(isNumber(KA))if(isNumber(Ti)){for(Ph=vs/100/12,0==Ph?ud=Bv/fv/12:ud=Ph/(1-Math.pow(1+Ph,12*-fv))*Bv,NB=parseInt(12*fv),fG=12*fv-NB,HG=new Array,i=1;i<=12*fv;i++)HG[i-1]=new Array,QK=Math.pow(1+Ph,i),0==Ph?Kp=Bv-i*ud:Kp=QK*Bv-(QK-1)/Ph*ud,1==i?HG[i-1][0]=Bv:HG[i-1][0]=HG[i-2][1],HG[i-1][1]=Kp,HG[i-1][2]=ud,HG[i-1][3]=ud-(HG[i-1][0]-HG[i-1][1]),1==i?HG[i-1][4]=HG[i-1][3]:HG[i-1][4]=HG[i-1][3]+HG[i-2][4];"undefined"==typeof cc&&(1e-4<fG?(HG[NB]=new Array,HG[NB][0]=HG[NB-1][1],HG[NB][1]=0,HG[NB][2]=fG*ud,HG[NB][3]=HG[NB][2]-(HG[NB][0]-HG[NB][1]),HG[NB][4]=HG[NB-1][4]+HG[NB][3]):NB--,dataArray=HG,theLoanTerm=fv,Xd=parseFloat(Xd),KA=parseFloat(KA),Ti=parseFloat(Ti),Mb=Xd+KA+Ti,MV="<table cellpadding='3' width='100%'>",MV+="<tr bgcolor='#dddddd'><td><b>Monthly Pay</b></td><td align=right>"+formatAsMoney(ud)+"</td></tr>",0<Mb&&(0<Xd&&(MV+="<tr><td>Monthly Property Tax</td><td align=right>"+formatAsMoney(Xd/12)+"</td></tr>"),0<KA&&(MV+="<tr><td>Monthly PMI (Private Mortgage Insurance)</td><td align=right>"+formatAsMoney(KA/12)+"</td></tr>"),0<Ti&&(MV+="<tr><td>Monthly Other Costs</td><td align=right>"+formatAsMoney(Ti/12)+"</td></tr>"),MV+="<tr bgcolor='#dddddd'><td><b>Monthly Total Out of Pocket</b></td><td align=right>"+formatAsMoney(ud+Mb/12)+"</td></tr>"),MV+="<tr><td>Total of "+(12*fv).toFixed(2)+" Monthly Payments</td><td align=right>"+formatAsMoney(12*ud*fv)+"</td></tr>",MV+="<tr><td>Total Interest Paid</td><td align=right>"+formatAsMoney(12*ud*fv-Bv)+"</td></tr>",MV+="</table>",showquickmsg(MV,!1))}else showquickmsg("other insurance and costs need to be numeric",!0);else showquickmsg("private mortgage insurance need to be numeric",!0);else showquickmsg("property taxes need to be numeric",!0);else showquickmsg("interest rate need to be numeric",!0);else showquickmsg("loan term need to be numeric",!0);else showquickmsg("loan amount need to be numeric",!0)}
</script>

<table bgcolor="#dddddd" id="mortgagecalc">
	<tr>
		<td>
			<table width="100%">
				<form>
				<tr>
					<td valign="top">
						<table id="calinputtable" align="center">
							<tr><td>Loan Amount</td><td align="right"><input type="text" name="cloanamount" size="5" id="cloanamount" value="300000" style="text-align: right;width:100px;" onchange="calc()"></td><td>$</td></tr>
							<tr><td>Loan Term</td><td align="right"><input type="text" name="cloanterm" size="5" id="cloanterm" value="30" style="text-align: right;width:100px;" onchange="calc()"></td><td>years</td></tr>
							<tr><td>Rate</td><td align="right"><input type="text" name="cinterestrate" size="5" id="cinterestrate" value="6" style="text-align: right;width:100px;" onchange="calc()"></td><td>%</td></tr>
							<tr><td>Property Tax</td><td align="right"><input type="text" name="cpropertytaxes" size="5" id="cpropertytaxes" value="0" style="text-align: right;width:100px;" onchange="calc()"></td><td>$/year</td></tr>
							<tr><td>PMI Insurance</td><td align="right"><input type="text" name="cpmi" size="5" id="cpmi" value="0" style="text-align: right;width:100px;" onchange="calc()"></td><td>$/year</td></tr>
							<tr><td>Other Cost</td><td align="right"><input type="text" name="" size="5" id="cothercost" value="0" style="text-align: right;width:100px;" onchange="calc()"></td><td>$/year</td></tr>
							<tr><td colspan="3" align="center"><input type="button" value="Calculate" onclick="calc()"></td></tr>
						</table>
					</td>
				</tr>
				</form>
			</table>
			<div id="coutput"></div>
			<div id="resulttable"></div>
			<center id="calfootnote">powered by <a href="https://www.NBcalculator.com" rel="nofollow">NBcalculator.com</a></center>
			<script>calc();</script>
		</td>
	</tr>
</table>

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