Convert Wh in kWh

Hi,

just started with OH3 and connected my KEBA wallbox.
I get the Energy Readings as Wh, is there an easy way to convert them into kWh?

Thanks!

Sure, several. So you need to be more specific in asking.

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Thank you.
I found this and it seems to work:
https://openhabforum.de/viewtopic.php?f=15&t=1339