---
title: Calculate Chill Hours and Growing Degree Days (GDD)
description: Learn how to calculate Chill Hours and Growing Degree Days (GDD) in Wisecrop using the bioclimatic calculator and climate data.
---

1. [Wisecrop](http://help.wisecrop.com/en/help?hsLang=en)
2. [ Wisecrop Tutorials ](http://help.wisecrop.com/en/help/wisecrop-tutorials?hsLang=en)
3. [ Weather App ](http://help.wisecrop.com/en/help/wisecrop-tutorials?hsLang=en#weather-app)

# Calculate Chill Hours and Growing Degree Days (GDD)

###  Step 1. Access the Bioclimatic Calculator

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Go to the **Climate** app and locate the **Bioclimatic** card.

Click the **Options**![](https://desk.zoho.com/galleryDocuments/edbsn39f0356b97460f47e3a05d24cd1f86e504ce54303417661b4a9a26bdf38b3900a2b1eb60e9eb9e170c8e0e304bf003be?inline=true)button and select the **Calculator **option.

![](https://help.wisecrop.com/galleryDocuments/edbsnf4307e7ec83aac8bdddaf9b2355a45ae303c0fc506ba5539da27e6e5a4f662c9e03d66473f074ef9d0493a2b65f71c1e?inline=true)

### Step 2. Calculate the Sum of Indicators

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A form will appear where you should:

- Select the **Bioclimatic Indicator**;
- Choose the **Data Source**;
- Select the **Start and End Dates**;
- Enter the **Base Temperature** value.

![](https://help.wisecrop.com/galleryDocuments/edbsn58bb09c3976d8c8e94354c82d475d483b2f2706785fcfe3b1cb740b03f9641d4dc159d94d4451adb66977e59298a282a?inline=true)

Finally, click the **Calculate **button in the bottom-right corner of the form.