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# How To: Convert a floating type raster to a polygon feature class and retain the decimal values

## Summary

The Raster to Polygon tool can only process integer input rasters. Hence, a floating type raster must be converted to an integer type raster before using the tool.

## Procedure

```Note:
The following workflow requires a Spatial Analyst license. The Int tool mentioned in this article exists in both the Spatial Analyst and 3D Analyst toolsets.```

The instructions provided describe how to convert a floating type raster to a polygon feature class and retain the decimal values.

1. Using the Raster Calculator tool, multiply the raster with a multiple of 10 required to remove the decimal values. For example, multiply a raster by 1000 if the raster values contain three decimal places, and by 100 if the values contain two decimal places.
1. Navigate to ArcToolbox > Spatial Analyst Tools > Map Algebra > Raster Calculator.
2. In the Layers and variables section, double-click the desired raster.
3. Click the multiplication sign (*).
4. Input the required multiple of 10. In this example, 1000000 is used because the raster contains floating values with six decimal places.
5. Click OK. 1. Using the Int tool, convert the floating type raster to an integer type raster.
1. Navigate to ArcToolbox > Spatial Analyst Tools > Math > Int.
2. Drag and drop the raster created in Step 1 as the input raster.
3. Specify the name and location for the output raster.
4. Click OK. 1. Convert the integer type raster to a polygon feature class using the Raster to Polygon tool.
1. Navigate to ArcToolbox > Conversion Tools > From Raster > Raster to Polygon.
2. Drag and drop the raster created in Step 2 in the Input raster field.
3. Specify the name and location for the output polygon feature class.
4. Fill in any optional parameters.
5. Click OK. 1. Divide the polygon feature class by the multiple of 10 used in Step 1 to get the original decimal values.
1. Right-click the output feature layer from Step 3, and click Edit Features > Start Editing.
2. Right-click the polygon feature layer, and clickOpen Attribute Table.
3. Click the Table Options drop-down arrow > Add Field. 1. Fill in the parameters in the Add Field window, and click OK. 1. Right-click the heading of the new field > Field Calculator. 1. In the Fields section, double-click the gridcode field with the multiple of 10 used in Step 1, and click OK. 