Formal letters are mostly related to business but informal letters are usually related to family or friends
By the way praveen can increase font size?
Contractions can be used in informal letter for example can't but contractions should not be used in formal letters
Formal Letters are written to someone who is of higher authority. Informal letters are written to someone whom you are familiar with.
Salutations differ between formal and informal letters. Informal letters' salutations would be rather cheery and casual, such as "love" or "cheers". For formal letters, it has a more serious and sincere tone, with phrases such as "yours sincerely" and "best regards".
Formal letters are sent to someone you don't really know, like your principal and other higher authority.Informal letters are sent to someone you know pretty well, like your friends or your parents.
Formal letters can only be written in a polite manner, while a informal letter can be written casually.
Informal letters are written casually to people whom you are close to for the purpose of catching up with them. Formal letters are written politely to people of a higher authority and more for the purpose of business issues.
Informal letters are written to friends/relatives and formal letters are usually written to businesses and managers
Informal letters are written to close friends, and are usually about personal matters, while formal letters are written to strangers and are mostly about business issues. Informal letters can have a casual tone, along with contractions, but formal letters are very polite, and do not have contractions.
The salutations and closures are different in informal and formal letters. Formal letters are usually to complain or commend on an act. It can also be written to higher authorities and for business purposes. On the other hand,informal letters are written to close friends or family.
Informal letters are written to people whom you may know quite a lot(for example, your parents or your friends) and it may not be formal, it might be casual. However, a formal letter is written to a person who you may be new to or whom to you might not be as casual as your friends or your parents.It must be formal and not be casual.
And forgot to add something, Formal letters re written to people like your principal,your teacher or a higher authority.
Formal letters are usually written to people of higher authority and importance. While informal letters are mainly written to family and close friends. Formal letters are usually for serious matters and are very direct about what is written in the message. Whereas in informal letters, it is more of a way for people to catch up and communicate. Informal letters are also usually more laid back than that of formal letters.
Formal letters are usually sent to those to a person whom u require a favor from. Informal letter are used for communicating friendly with people whom you are familiar with/know.
Formal letters are used when you are writing to someone of a certain importance, important enough to warrant use of such formalities. Informal letters are written to some whom you can afford to be familiar with, decided by the circumstances and purpose of the letter
Formal letters are written with a more solemn tone and have proper English(no slang), while informal letters may have s;lang and a less serious tone.
Formal letters are written to important people and most of the time, it is regarding an important event to show respect to the recipient. Informal letters are written casually to family and friends and contractions are usually used.
Formal letters are usually polite, respectful, purposeful , direct and written in the style of a business letter. Informal letters often contain slang and the words used are not as polite and respectful as the words used in a formal letter.