# Kc crop coefficient **URL:** \ **Category:** Science, Research & Data\ **Tags:** annual-water-yield\ **Created:** [January 16, 2025, 9:57pm UTC](https://community.naturalcapitalalliance.org/t/kc-crop-coefficient/5732 "2025-01-16T21:57:44Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![bmnoz\_2001](https://avatars.discourse-cdn.com/v4/letter/b/c67d28/32.png) [@bmnoz\_2001](https://community.naturalcapitalalliance.org/u/bmnoz_2001)\ **Post date:** [January 16, 2025, 9:57pm UTC](https://community.naturalcapitalalliance.org/t/kc-crop-coefficient/5732/1 "2025-01-16T21:57:44Z")
Dear group, Can I use the KC calculator for Annual Water Yield? What do I have to know about this? Thanks! ---
**Author:** ![edavis](https://avatars.discourse-cdn.com/v4/letter/e/71c47a/32.png) [@edavis](https://community.naturalcapitalalliance.org/u/edavis)\ **Post date:** [January 17, 2025, 12:11am UTC](https://community.naturalcapitalalliance.org/t/kc-crop-coefficient/5732/2 "2025-01-17T00:11:49Z")
Hi @bmnoz_2001, welcome to the forum! The Data Sources section of the InVEST User Guide includes some guidance on calculating Kc values for crops, other vegetation, and non-vegetated areas. [Data Sources: Crop Evapotranspiration Coefficient](https://storage.googleapis.com/releases.naturalcapitalproject.org/invest-userguide/latest/en/data_sources.html#kc) [Fuentes de datos: Coeficiente de Evapotranspiración del Cultivo](https://storage.googleapis.com/releases.naturalcapitalproject.org/invest-userguide/latest/es/data_sources.html#kc) If you haven’t already, please read through it and see if it has what you’re looking for. If you still have questions, let us know! ---
**Author:** ![bmnoz\_2001](https://avatars.discourse-cdn.com/v4/letter/b/c67d28/32.png) [@bmnoz\_2001](https://community.naturalcapitalalliance.org/u/bmnoz_2001)\ **Post date:** [January 17, 2025, 1:08am UTC](https://community.naturalcapitalalliance.org/t/kc-crop-coefficient/5732/3 "2025-01-17T01:08:29Z")
Hi @edavis! Thanks a lot!