Convert php style

function cm2ft($cm){
    $calc = $cm * 0.032808;
    $ft = round($calc);
    $inches = $calc - $ft;
    $inches = round($inches * 10);
    $ft_in = $ft."ft ".$inches."in";
    return $ft_in;
}
function kg2lbs($kg){
    $convert = $kg * 2.2046;
    $lbs = number_format((float)$convert, 3, '.', '');
    $lbs_converted = $lbs + "lbs";
    return $lbs_converted;
}