Whether you’re a beginner in SEO or a seasoned pro, it’s important to keep up on how your pages will be displayed in the Search Engine Results Pages (SERPs) across each engine.
Google shows 69 Characters (Including Spaces) for Page Title.
Google shows 156 Characters (Including Spaces) for Meta Description.
It should also be known that if you don’t include a Meta Description or if Google feels a better description for your page could be given by using a web snippet, then the description shown can be up to 320 characters. Of course, they won’t be the characters that you choose so they might not best represent what you wish your audience to see in the SERP’s.
Use almost all your targeted keyword in Title in 70 character and in description 156 its Good for seo practice, Otherwise Google discard your all Title and Description longer then 70 - 160 respectively. Suggestion Include your domain name in Your Title and description.
I try to keep my titles and descriptions nice and simple. Think about the subject for each page, and create titles and descriptions that are unique, simple, and contains your target keywords. I also like to see what my competition has used for their titles and descriptions, that way I can get ideas for my websites too
Title tag means title of a web page. Search engines crawling you by read title tag. meta tag have mainly two type meta description tag and meta keyword tag. Before meta tag must need perfect keyword research.