Who can use this feature?
ðŸ‘¤ Available on all plans
Formulas let you transform and combine existing fields into a new Formula field. For example, you can:
 Concatenate
First name
andLast name
fields into aFull name
Formula field.  Multiply
Price
andUnits
field to get the result in theRevenue
Formula field.
The field will show only in your Stacker app, and won't show up in your Airtable base or Google Sheets.
Create a formula field
 Go to App Settings > [Table name] > Fields
 Click Add field > Formula
 Type in your formula
 Click Save
Press space in the formula field box to see a list of all available fields and functions.
Fields in formulas
To use a field in a formula, the field needs to be in the table where you're creating the formula field. It also needs to be one of the following data types:
 Text
 Long Text
 Number
 Checkbox
 URL
 Single Select Dropdown
 Percentage
 Currency
To use a field in a formula, you will need to wrap it in curly brackets. For example, {Price}. If you type in the opening curly bracket, we will suggest all available fields.
List of formulas
Functions work with any valid field data types, while operators work only on number fields. If you use an operator for a nonnumber field, we will try to convert it into a number. If we can't, you'll see an error message.
Type  Name  Description  Syntax  Examples 
Function  CONCAT  Concatenate two values. 
or 
or 
Function  Condition 
Check whether the statement is true. If it is true, then do Action A. If it is false, then do Action B. 
IF(statement, Action A, Action B) 
IF({UserId}, "https://dashboard.com/" + {UserId}, "") 
Operator  SUM 
Returns the sum of two or more numbers. 
or 
or

Operator  Subtract 
Returns the difference of two numbers. 
 
{Total stock}  {Sold stock} 
Operator  Multiply 
Returns the product of two numbers. 
* 
{Sold} * {Price} 
Operator  Divide 
Returns one number divided by another. 
/ 
{Total sold} / {Price} 
Operator  Average 
Returns the average of the values in two or more fields. 
AVERAGE( , ) 
AVERAGE({Sold},{Not sold}) 
Error messages
If a formula is invalid, you will see an error message that might help you understand what went wrong.
Error  Meaning 
Missing formula function or Unexpected formula function 
Means that you were very creative, but we don't have the formula function yet. 
Function only works with field_type but field is a another_field_type 
Shows when using a field with an incompatible field type. 
In an IF function, field_name and field_name_2 must be of similar
types 
Shows in an IF function when the Action A and Action B are different types. 
Missing keys in formula 'IF' function: else 
Means that there is a missing else (Action B) in the IF function. 