The HTML Output element (<output>) is a container element into which a site or app can inject the results of a calculation or the outcome of a user action.

Content categories Flow content, phrasing content, listed, labelable, resettable form-associated element, palpable content.
Permitted content Phrasing content.
Tag omission None, both the starting and ending tag are mandatory.
Permitted parents Any element that accepts phrasing content.
Permitted ARIA roles Any
DOM interface HTMLOutputElement


This element includes the global attributes.

A space-separated list of other elements’ ids, indicating that those elements contributed input values to (or otherwise affected) the calculation.
The form element that this element is associated with (its "form owner"). The value of the attribute must be an id of a form element in the same document. If this attribute is not specified, the output element must be a descendant of a form element. This attribute enables you to place output elements anywhere within a document, not just as descendants of their form elements.
The name of the element, exposed in the HTMLFormElement API.


This form provides a slider whose value can range between 0 and 100. and an <input> element into which you can enter a second number. The two numbers are added together and the result is displayed in the <output> element each time the value of any of the controls changes.

<form oninput="result.value=parseInt(a.value)+parseInt(b.value)">
  <input type="range" name="b" value="50" /> +
  <input type="number" name="a" value="10" /> =
  <output name="result">60</output>


Browser compatibilityUpdate compatibility data on GitHub

Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 10 Yes 4 No 11 7
for 10 Yes 4 No 11 7
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support Yes Yes Yes 4 ? Yes Yes
for Yes Yes Yes 4 ? Yes Yes

See also

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