Script to find the area of shapes in Adobe Illustrator

GetShapeArea.jsx

/* Save this file with a jsx extension and place in your
Illustrator/Presets/en_US/Scripts folder. You can then
access it from the File > Scripts menu */

var decimalPlaces = 3;
var scale = prompt("1/", " ", "Enter Scale");
if (app.documents.length > 0) {
  if (app.activeDocument.selection.length < 1) {
    alert("Select a path");
  } else if (app.activeDocument.selection[0].area) {
    // Individual Items
    var objects = app.activeDocument.selection;
  } else if (app.activeDocument.selection[0].pathItems) {
    // Group/Compound Shape
    var objects = app.activeDocument.selection[0].pathItems;
  } else {
    alert("Please select a path or group.");
  }

  // Collect info
  var totalArea = 0;
  for (var i = 0; i < objects.length; i++) {
    if (objects[i].area) {
      var totalArea = totalArea + objects[i].area;
    }
  }

  // Conversions
  var ppi = 72;
  var areaIn = totalArea / ppi / ppi;
  if (areaIn < 0) var areaIn = -areaIn;
  var areaCm = areaIn * 6.4516;
  var areaM = areaCm / 10000;
  var scaledAreaCm = areaCm * scale * scale;
  var scaledAreaM = areaM * scale * scale;

  // Display
  alert(
    "Shape Area\
" +
      areaCm.toFixed(decimalPlaces) +
      " cm²  in 1/" +
      scale +
      "\
" +
      areaM.toFixed(decimalPlaces * 2) +
      " m²  in 1/" +
      scale +
      " \n\
" +
      scaledAreaCm.toFixed(decimalPlaces) +
      " cm²  in 1/1 \
" +
      scaledAreaM.toFixed(decimalPlaces) +
      " m²  in 1/1 \n\
" +
      i +
      " shapes"
  );
}