# Best way to count documents in index

**URL:** <https://discuss.elastic.co/t/best-way-to-count-documents-in-index/328610>\
**Category:** Logstash\
**Created:** [March 27, 2023, 11:07am UTC](https://discuss.elastic.co/t/best-way-to-count-documents-in-index/328610 "2023-03-27T11:07:46Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![SalvoDM91](https://avatars.discourse-cdn.com/v4/letter/s/e19adc/32.png) [@SalvoDM91](https://discuss.elastic.co/u/SalvoDM91)\
**Post date:** [March 27, 2023, 11:07am UTC](https://discuss.elastic.co/t/best-way-to-count-documents-in-index/328610/1 "2023-03-27T11:07:46Z")

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Hi Guys,

I'm creating a pipeline to calculate a price.  
I need to multiply the number of documents of my index (with a filter like room = red) with a constant 1.27€.

Could you please help me about the best way in order to count the documents in my index?

Thanks!

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<div class="post-metadata">

**Author:** ![Rios](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rios/32/95745_2.png) [@Rios](https://discuss.elastic.co/u/Rios)\
**Post date:** [March 27, 2023, 12:30pm UTC](https://discuss.elastic.co/t/best-way-to-count-documents-in-index/328610/2 "2023-03-27T12:30:18Z")

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If you want to count docs which are already in ES, then use Kibana Lens which is difference subforum.

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<div class="post-metadata">

**Author:** ![SalvoDM91](https://avatars.discourse-cdn.com/v4/letter/s/e19adc/32.png) [@SalvoDM91](https://discuss.elastic.co/u/SalvoDM91)\
**Post date:** [March 27, 2023, 12:37pm UTC](https://discuss.elastic.co/t/best-way-to-count-documents-in-index/328610/3 "2023-03-27T12:37:33Z")

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Hi Rios,

thanks for your help!  
I need to apply some rules inside my calculation, so if possible I would like to count the documents in index, apply the rules and insert a new document in a dedicated index with the price, the number of documents and so on

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 24, 2023, 12:38pm UTC](https://discuss.elastic.co/t/best-way-to-count-documents-in-index/328610/4 "2023-04-24T12:38:17Z")

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