However, here's a general estimate:
* Standard font (like Times New Roman) at 12pt: A 300-word essay double-spaced will likely be around 1-1.5 pages long.
* Larger font sizes or different fonts: Will make the essay longer.
To get a more accurate length:
1. Type your essay in the desired font and font size.
2. Set the line spacing to double.
3. Count the number of pages.
This will give you the exact length of your 300-word essay.