You can name ranges in Google Sheets to keep better track of them and create cleaner formulas.
For example, instead of using "A1:B2" to describe a range of cells, you could name the range "budget_total." This way, a formula like "=SUM(A1:B2, D4:E6)" could be written as "=SUM(budget_total, quarter2)."
Name a range
- Open a spreadsheet in Google Sheets.
 - Select the cells you want to name.
 - Click Data 
Named ranges. A menu will open on the right.
Tip: To quickly open this menu, in the range box on the top left, click the drop down menu> Manage named ranges.
 - Type the range name you want.
 - To change the range, click Spreadsheet 
.
 - Select a range in the spreadsheet or type the new range into the text box, then click Ok.
 - Click Done.
 
Range names:
- Can contain only letters, numbers, and underscores.
 - Can't start with a number, or the words "true" or "false."
 - Can't contain any spaces or punctuation.
 - Must be 1–250 characters.
 - Can't be in either A1 or R1C1 syntax. For example, you might get an error if you give your range a name like "A1:B2" or "R1C1:R2C2."
 
Edit or delete a named range
- Open a spreadsheet in Google Sheets.
 - Click Data 
Named ranges.
 - On the named range you want to edit or delete, click Edit 
.
 - To edit the range, enter a new name or range, then click Done.
 - To delete the named range, next to the name, click Delete range 
.
 - On the menu that opens, click Remove.
 
Note: When you delete a named range, any formulas that reference it will no longer work. Protected ranges that reference a named range will use the cell values and continue to work.