Home • Programming • JavaScript Feb 17th, 2016 at 04:52 PM

Land Measuring Converter

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Land Measuring Converter</title>
<script>
  function cal(){
	  var from=document.f.cmbFromUnit.value;
	  var to=document.f.cmbToUnit.value;
	  var amount=parseFloat(document.f.txtAmount.value);
	 
	  var output=0.0;
	  
	  if(from=="gonda" && to=="katha"){
		  
		  output=(amount*1.21)+" "+to;
		 
	  }else if(from=="katha" && to=="gonda"){
		  
		 output=(amount*(1/1.21))+" "+to;
		 
	  } else if(from=="katha" && to=="sqrtf"){
		  
		 output=(amount*720)+" "+to;
		 
	  } else if(from=="sqrtf" && to=="katha"){
		  
		 output=(amount*(1/720))+" "+to;
		 
	  } else if(from=="sqrtf" && to=="gonda"){
		  
		 output=(amount*(1/871.2))+" "+to;
		 
	  }else if(from=="gonda" && to=="sqrtf"){
		  
		 output=(amount*871.2)+" "+to;
		 
	  }  
	  
	  document.getElementById("output").innerHTML="= "+output;	   
  }

</script>
</head>
<body>
<form style="width:350px;" name="f">
<fieldset>
 <legend>LMC</legend> 
 Amount<br/>
 <input type="text" name="txtAmount" id="txtAmount" onKeyUp="cal()" />
 
   <select name="cmbFromUnit" onChange="cal()">     
     <option value="gonda">Gonda</option>
     <option value="katha">Katha</option>
     <option value="sqrtf">Square ft</option>
   </select> 
  to
   <select name="cmbToUnit" onChange="cal()">   
     <option value="katha">Katha</option>
      <option value="gonda">Gonda</option>
      <option value="sqrtf">Square ft</option>
   </select>
  <br/>
 <span id="output" style="font-size:20px;"></span>
</fieldset>
</form>
</body>
</html>

Reference: Calculation of area of land in Bangladesh

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Land Measuring Converter

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