# Calculate age

**URL:** https://discuss.elastic.co/t/calculate-age/89837
**Category:** Elasticsearch
**Created:** [June 18, 2017, 8:24am UTC](https://discuss.elastic.co/t/calculate-age/89837 "2017-06-18T08:24:27Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![shaharz](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@shaharz](https://discuss.elastic.co/u/shaharz)
#### Post date: [June 18, 2017, 8:24am UTC](https://discuss.elastic.co/t/calculate-age/89837/1 "2017-06-18T08:24:27Z")

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HI,

i have a birthday field. what is the best practice to calculate age to be able to search on and for doing some visualization in kibana also?

thanks,  
Shahar

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### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [June 18, 2017, 11:39am UTC](https://discuss.elastic.co/t/calculate-age/89837/2 "2017-06-18T11:39:20Z")

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You mean you want to show the age of a person at any given moment in KB?

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### Author: ![shaharz](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@shaharz](https://discuss.elastic.co/u/shaharz)
#### Post date: [June 18, 2017, 11:50am UTC](https://discuss.elastic.co/t/calculate-age/89837/3 "2017-06-18T11:50:56Z")

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In years.

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### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [June 19, 2017, 12:16am UTC](https://discuss.elastic.co/t/calculate-age/89837/4 "2017-06-19T00:16:17Z")

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There's no metric etc for this, you'd probably need to do a scripted field with some painless math.

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<div class="post-metadata">

### Author: ![shaharz](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@shaharz](https://discuss.elastic.co/u/shaharz)
#### Post date: [June 19, 2017, 4:22am UTC](https://discuss.elastic.co/t/calculate-age/89837/5 "2017-06-19T04:22:39Z")

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Yes i assumed so, but how can i do it and where. Lets say i have a field  
named DayOfBirth = 1975-09-16.

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<div class="post-metadata">

### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [June 19, 2017, 5:30am UTC](https://discuss.elastic.co/t/calculate-age/89837/6 "2017-06-19T05:30:00Z")

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[https://www.elastic.co/guide/en/kibana/5.4/scripted-fields.html](https://www.elastic.co/guide/en/kibana/5.4/scripted-fields.html) is where to start.

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 17, 2017, 5:30am UTC](https://discuss.elastic.co/t/calculate-age/89837/7 "2017-07-17T05:30:04Z")

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