What font size?
The answer will depend on the font SIZE, not the font itself!
A one-inch margin is equivalent to four spaces. This is the standard measurement used in most word processing programs and typesetting conventions.
Approximately five spaces. However, the number of spaces depend upon the font setting your use. My advise to you is to use whatever suits you, thought be realistic...
In Microsoft Word, the number of spaces that equal 1 inch can vary depending on the font size and type. However, a general guideline is that at 12-point font, there are approximately 10 spaces per inch. This can change with different fonts and sizes, so it's best to measure using the ruler or adjust settings for precise formatting.
The answer depends on the graduation.
6
8
2.54 cm is equal to 1 inch
2.54 cm equal 1 inch
2.54cm per inch.
One inch is equal to 0.00254 decameters
1 inch = 0.0000254 kilometers