Full height of a html element (div) including border, padding and margin?

Question

I need the full height of a div, I\'m currently using

document.getElementById(\'measureTool\').offsetHeight

offsetHeig

Answer 1

Vanilla JavaScript ECMAScript 5.1

• element.getBoundingClientRect() returns a DOMRect object which contains height (including padding & border)
• window.getComputedStyle(element) returns an object with all CSS properties after applying active stylesheets and performed any computation (if present)

var element = document.getElementById('myID'),
    height = element.getBoundingClientRect().height,
    style = window.getComputedStyle(element);
    
// height: element height + vertical padding & borders
// now we just need to add vertical margins
height = ["top", "bottom"]
  .map(function(side) {
    return parseInt(style['margin-' + side], 10)
  })
  .reduce(function(total, side) {
    return total + side
  }, height)
  
// result: compare with devtools computed measurements
document.querySelector('.result').innerText = 'Total height is: ' + height + 'px';

#myID {
  padding: 10px 0 20px;
  border-top: solid 2px red;
  border-bottom: solid 3px pink;
  margin: 5px 0 7px;
  background-color: yellow;
}

.result {
  margin-top: 50px;
}

element