jQuery height() vs outerHeight()

.height()
Get the current computed height for the first element in the set of matched elements. This does not include the padding, border and margin.

.outerHeight([includeMargin])
Get the current computed height for the first element in the set of matched elements, including padding, border, and optionally margin.

"includeMargin" is a optional boolean indicating whether to include the element's margin in the calculation.

$(window).height(); // returns height of browser viewport
$(document).height(); // returns height of HTML document

$("#IdofYourDIV").height(); // returns height of "IdofYourDIV" excluding padding, border and margin

$("#IdofYourDIV").outerHeight(); // returns height of "IdofYourDIV" including padding and border but excluding margin

$("#IdofYourDIV").outerHeight(true); // returns height of "IdofYourDIV" including padding, border and margin