files/en-us/web/api/svgellipseelement/ry/index.md
{{APIRef("SVG")}}
The ry read-only property of the {{domxref("SVGEllipseElement")}} interface describes the y-axis radius of the ellipse as an {{domxref("SVGAnimatedLength")}}. It reflects the computed value of the {{SVGAttr("ry")}} attribute on the {{SVGElement("ellipse")}} element.
The attribute value is a <length>, <percentage>, or <number>. The numeric value of the {{domxref("SVGAnimatedLength.baseVal")}} is the radius of the ellipse along the y-axis in the user coordinate system.
An {{domxref("SVGAnimatedLength")}}.
Given the following SVG:
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<ellipse cx="50" cy="75" rx="30" ry="20" fill="blue" />
<ellipse cx="25%" cy="50%" rx="10%" ry="5%" fill="red" />
</svg>
We can access the computed values of the ry attributes:
const ellipses = document.querySelectorAll("ellipse");
const ryPos0 = ellipses[0].ry;
const ryPos1 = ellipses[1].ry;
console.dir(ryPos0.baseVal.value); // output: 20
console.dir(ryPos1.baseVal.value); // output: 10 (5% of 200)
{{Specifications}}
{{Compat}}