# How to calculate the query per second from the existing metrics?
**URL:** https://discuss.elastic.co/t/how-to-calculate-the-query-per-second-from-the-existing-metrics/255775
**Category:** Beats
**Tags:** metricbeat
**Created:** [November 18, 2020, 2:39am UTC](https://discuss.elastic.co/t/how-to-calculate-the-query-per-second-from-the-existing-metrics/255775 "2020-11-18T02:39:30Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Izek\_Chen](https://discuss.elastic.co/u/Izek_Chen)
#### Post date: [November 18, 2020, 2:39am UTC](https://discuss.elastic.co/t/how-to-calculate-the-query-per-second-from-the-existing-metrics/255775/1 "2020-11-18T02:39:30Z")
As per title, I check the export field document and seems like the "[mongodb.collstats.queries.time.us](http://mongodb.collstats.queries.time.us)" is the right one.
the problem I see is that since the metrics gathered are cumulative those values do not represent individual times, that's why my graph looks incremental
Do I need to do the dividing like below?
"[mongodb.collstats.queries.time.us](http://mongodb.collstats.queries.time.us)" / "mongodb.collstats.queries.count"
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 16, 2020, 4:39am UTC](https://discuss.elastic.co/t/how-to-calculate-the-query-per-second-from-the-existing-metrics/255775/2 "2020-12-16T04:39:31Z")
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