<form name=conv><table style='border:red solid 10px;font-size:18px'width=970 height=300><tr><td>Length calculator</td><td align=right><a href="https://www.emexee.com" style="font-size:18px; text-decoration:none; color:#3D366F;cursor:pointer"></a></td></tr><tr><td align=center><input onkeyUp="checnum(this);inchconv();" value=1 name=inch></td><td>inch</td></tr><tr><td align=center><input onkeyUp="checnum(this);cmconv();" value=2.25 name=cm ></td><td>cm</td></tr><tr><td align=center><input onkeyUp="checnum(this);feetconv();" value=0 name=feet ></td><td>feet</td></tr><tr><td align=center><input onkeyUp="checnum(this);kiloconv();" value=0 name=kilo ></td><td>kilo</td></tr><tr><td align=center><input onkeyUp="checnum(this);milesconv();" value=0 name=miles></td><td>Miles</td></tr></table> </form> <br> <script type="text/javascript">function checnum(as) { var dd = as.value; if(isNaN(dd)) { dd = dd.substring(0,(dd.length-1)); as.value = dd; } } function inchconv(val){ with(document.conv){ cm.value = (Math.round(inch.value*2.54)).toFixed(2); feet.value=(Math.round(inch.value/12)).toFixed(2); var tmp=(inch.value* 2.54)*Math.pow(10,-5); kilo.value=((inch.value* 2.54)*Math.pow(10,-5)).toFixed(2); miles.value=((inch.value*1.58)*Math.pow(10,-5)).toFixed(2); } } function feetconv(val){ with(document.conv){ cm.value=(Math.round(feet.value*30.48)).toFixed(2); inch.value=(Math.round(feet.value*12)).toFixed(2); kilo.value=((feet.value* 3.05)*Math.pow(10,-4)).toFixed(2); miles.value==((feet.value*1.8900000000000001)*Math.pow(10,-4)).toFixed(2); } } function cmconv(val){ with(document.conv){ feet.value = (Math.round(cm.value/30.84)).toFixed(2); inch.value = (Math.round(cm.value/2.54)).toFixed(2); kilo.value=((cm.value*1)*Math.pow(10,-5)).toFixed(2); miles.value==((cm.value*6.21)*Math.pow(10,-6)).toFixed(2); } } function kiloconv(val){ with(document.conv){ feet.value = ((kilo.value*3.28)*Math.pow(10,3)).toFixed(2); inch.value = ((kilo.value*3.94)*Math.pow(10,4)).toFixed(2); cm.value=((kilo.value*1)*Math.pow(10,5)).toFixed(2); miles.value=((kilo.value* 0.621)).toFixed(2); } } function milesconv(val){ with(document.conv){ feet.value =((miles.value* 5.28)*Math.pow(10,3)).toFixed(2); inch.value = ((miles.value*6.34)*Math.pow(10,4)).toFixed(2); cm.value=((miles.value*1.61)*Math.pow(10,5)).toFixed(2); kilo.value=((miles.value*1.61)).toFixed(2); } } </script> {full_page}