# Is there a way to measure the length of an arc after creating it?

**URL:** <https://forums.sketchup.com/t/is-there-a-way-to-measure-the-length-of-an-arc-after-creating-it/40467>\
**Category:** SketchUp\
**Created:** [March 6, 2017, 10:42pm UTC](https://forums.sketchup.com/t/is-there-a-way-to-measure-the-length-of-an-arc-after-creating-it/40467 "2017-03-06T22:42:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![IanT](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/iant/32/92023_2.png) [@IanT](https://forums.sketchup.com/u/IanT)\
**Post date:** [March 6, 2017, 10:42pm UTC](https://forums.sketchup.com/t/is-there-a-way-to-measure-the-length-of-an-arc-after-creating-it/40467/1 "2017-03-06T22:42:34Z")

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I have the need sometimes to measure the length of an arc. I can obviously measure the radius, but can the length be measured?

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**Author:** ![TIG](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/tig/32/198_2.png) [@TIG](https://forums.sketchup.com/u/TIG)\
**Post date:** [March 6, 2017, 10:44pm UTC](https://forums.sketchup.com/t/is-there-a-way-to-measure-the-length-of-an-arc-after-creating-it/40467/2 "2017-03-06T22:44:40Z")

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![](https://global.discourse-cdn.com/sketchup/original/3X/5/6/56379946abedb7af93c131c2ed5f36338ab84610.png)  
Select it and ensure that the “Entity Info” dialog is expanded to its max height using the top-right’s down-arrow-icon…

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**Author:** ![IanT](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/iant/32/92023_2.png) [@IanT](https://forums.sketchup.com/u/IanT)\
**Post date:** [March 6, 2017, 10:48pm UTC](https://forums.sketchup.com/t/is-there-a-way-to-measure-the-length-of-an-arc-after-creating-it/40467/3 "2017-03-06T22:48:42Z")

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Thanks TIG, I never have it expanded, no wonder I didn’t spot it!  
Not often I need it but I really need it right now.

Simple as that then, Thanks a lot.

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**Author:** ![john\_mcclenahan](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/john_mcclenahan/32/135377_2.png) [@john\_mcclenahan](https://forums.sketchup.com/u/john_mcclenahan)\
**Post date:** [March 7, 2017, 1:31am UTC](https://forums.sketchup.com/t/is-there-a-way-to-measure-the-length-of-an-arc-after-creating-it/40467/4 "2017-03-07T01:31:08Z")

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I’ve used SU since v 6 or 7 and I don’t think I ever knew you COULD expand Entity Info. Thanks, TIG.