What is the symbol for 4 inches?

What is the symbol for 4 inches?
In some cases, the foot is denoted by a prime, which is often marked by an apostrophe, and the inch by a double prime; for example, 2 feet 4 inches is sometimes denoted as 2′−4″, 2′ 4″ or 2′4″.
Does 4 mean feet or inches?
Feet are represented in two popular ways. First, there is the letter abbreviation “ft.” Second, you can use a single apostrophe (') – for instance, 4' would be read “four feet.” Inches are represented in letter form “in” or “ins” for inches. Or as a double apostrophe (”). For example, 5” would be read as “five feet.”
How do you type the inch symbol on a keyboard?
Note: On the standard keyboard, the Inch Symbol is the same as double quotes and apostrophe respectively. To type the double quotes symbol as the inch symbol, press Shift + ′ (apostrophe), and to type the apostrophe as the feet symbol, just press the apostrophe key.
How to type the feet and inch symbols [ ″ ]?
Inch Symbol [″] Quick Guide Inch Symbol ″ Feet Symbol ′ Inch symbol on keyboard [Shift] + [′] keys Feet Symbol on keyboard [′] key
Which is the international standard symbol for inch?
The international standard symbol for inch is in (see ISO 31-1, Annex A) but traditionally the inch is denoted by a double prime, which is often approximated by double quotes, and the foot by a prime, which is often approximated by an apostrophe. For example, three feet two inches can be written as 3′ 2″.
What's the difference between inches and feet on a keyboard?
The inch symbol is denoted by a double prime (i.e. double quotes) whilst the feet symbol is denoted by a prime (i.e. apostrophe). For instance, nine feet five inches can be written or typed as 9″5′ using your keyboard.