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# Getting the number of columns of a 2D NumPy array

*schedule*Aug 12, 2023

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To get the number of columns of a 2D Numpy array, use its `shape`

property.

Here's a quick example. Suppose we have a 2 by 3 array:

```
x = np.array([[1,2,3], [4,5,6]])x
array([[1, 2, 3], [4, 5, 6]])
```

To get the number of columns:

```
x.shape[1]
3
```

By the way, to get the number of rows:

```
x.shape[0]
2
```

Published by Isshin Inada

Edited by 0 others

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