Gravity Perks – Advanced Calculations


What does it do?

Advanced Calculations completely revamps calculations in Gravity Forms. Not only does it empower you with advanced mathematical functions and conditionals, it improves the formula editing experience with a powerful new editor, complete with syntax highlighting, autocompletion, shorthand field references, and so much more!

With Advanced Calculations you can create:

  • Mortgage calculators
  • Advanced calculated products
  • Auto loan calculators
  • Investment/Retirement calculators
  • BMI calculators
  • And many more!


  • Heaps of mathematical functions.
    Spreadsheet style math directly in your form.
  • Conditional statements.
    Specify multiple formulas in the same field; use the right one based on your conditions.
  • Formula shorthand.
    Simplify your formulas with our field reference shorthand. No more cumbersome merge tags!
  • Syntax highlighting.
    Clarify your complex formulas and spot issues quickly with automatic syntax highlighting.
  • Secure, tamperproof calculations.
    All calculations are recalculated on submission for accuracy and security.
  • Seamless integration.
    Automatically enhances all calculation-enabled fields like Number and Calculated Product fields.
  • Automatic updates.
    Get updates and the latest features right in your dashboard.
  • Legendary support.
    We’re here to help! And we mean it.


  1. How do I enable this functionality?
  2. Feature Details
    1. Merge Tag Shorthand
    2. Conditional Statements
      1. if/else
      2. if/elseif/else
    3. Syntax Highlighting
    4. Tooltips
    5. Functions
      1. Absolute Value – abs
      2. Average – average
      3. Ceiling – ceil
      4. Exponential – exp
      5. Floor – floor
      6. Future Value – fv
      7. Natural Logarithm – ln
      8. Logarithm – log
      9. Maximum – max
      10. Minimum – min
      11. Pi – pi
      12. Round – round
      13. Square Root – sqrt
  3. Known Limitations
  4. Integrations
    1. Invoicing Templates by Gravity PDF
  5. Translations
  6. FAQs
  7. Hooks

How do I enable this functionality?

After installing and activating Gravity Forms Advanced Calculations,

Gravity Perks – Advanced Calculations Add a Number field to your form.
Gravity Perks – Advanced Calculations Check Enable Calculation.
Gravity Perks – Advanced Calculations Insert advanced calculations into form. Use the Formula Cheatsheet for a primer on calculations.

Feature Details

Merge Tag Shorthand

The true power of calculations with Gravity Forms comes from being able to reference other fields to create calculations from what users have entered. Gravity Forms uses merge tags to reference fields. Merge tags are referenced using the field ID, with or without the descriptor, such as {Field A:1} or {:1}.

Gravity Forms Advanced Calculations adds shorthand for fields to clean up your calculations and make it easier to keep track of everything. The shorthand for the same field shown above is written as F1.

Shorthand offers more readable calculations, especially for complicated functions.

Gravity Perks – Advanced Calculations

Conditional Statements

Advanced Calculations supports conditional statements such as if/else and if/elseif/else. Use these statements to evaluate calculations based on field values.



if( F1 > 1.25 && F1 < 5.5 ):
	F1 * 50




if( F1 < 5.5 ):
	F1 * 50
elseif( F1 >= 10 ):
	F1 * 25


You may use as many elseif statements as needed. You are not limited to one.
Supported Operators

The following comparison operators are supported:

  • == Equal to
  • != Not equal to
  • > Greater than
  • < Less than
  • >= Greater than or equal to
  • <= Less than or equal to
Multiple Expressions

Conditional statements support multiple expressions within a single condition via the the && (and) or the || (or) operators.

To require both expressions to be true for the condition to match, you would use the && operator. In this example, the condition will only be true if Field #1 is greater than 5 and less than 10.


if ( F1 > 5 && F1 < 10 ):


If you would like your condition to match if any of the conditions are true, you would use the || operator. In this example, the condition will return true if Field #1 is greater than 5 or if Field #2 is greater than 5.


if ( F1 > 5 || F2 > 5 ):


While these examples are simple, this functionality is quite robust and can handle conditions that contain expressions with both && and || operators.

Syntax Highlighting

Advanced Calculations adds syntax highlighting and autocompletion to the calculation text area. Syntax highlighting drastically improves the readability of calculations, especially complicated ones that use conditional statements and functions.

Gravity Perks – Advanced Calculations

Autocompletion aids you when inputting a function or conditional statement. When you start typing any supported function, the editor will suggest a completion. Click the suggested function (or hit return) to insert the full function with placeholder values.

Gravity Perks – Advanced Calculations

The editor also automatically closes parentheses and merge tag braces. Say goodbye to invalid formulas because of an errant parenthesis!


When hovering over shorthand field variables and merge tag field variables with no descriptor in the formula editor, you will see a tooltip displaying the field’s label.

Gravity Perks – Advanced Calculations


Advanced Calculations adds support for common functions to both save you time and effort and provide more accurate results.

Absolute Value – abs

Returns the absolute value of a number.

Show Details

Average – average

Returns the average value of the arguments given.

Show Details

Ceiling – ceil

Rounds a number up to the next largest integer.

Show Details

Exponential – exp

Returns e^x, where e is Euler’s number (~2.718) and x is the provided value.

Show Details

Floor – floor

Rounds a number down to the nearest integer.

Show Details

Future Value – fv

fv calculates the future value of an investment based on constant-amount periodic payments and a constant interest rate.

Show Details

Natural Logarithm – ln

ln returns the logarithm of a number, base e. e is Euler’s number (~2.718).

Show Details

Logarithm – log

log returns the logarithm of a number, base 10.

Show Details

Maximum – max

max returns the largest value in the list of arguments.

Show Details

Minimum – min

min returns the smallest value in the list of arguments.

Show Details

Pi – pi

pi returns the value of pi to 20 decimal places.

Show Details

Round – round

round rounds a number to the nearest integer.

Show Details

Square Root – sqrt

sqrt returns the square root of a number.

Show Details

Known Limitations

  • Non-numeric values are not supported in conditional statements.


Invoicing Templates by Gravity PDF

GP Advanced Calculations integrates with Gravity PDF’s Invoicing 2.0+ templates. These templates allow for business-ready invoice generation from Gravity Forms submissions. They’re highly customizable, translatable, support conditional logic, and are GST/VAT compatible. This integration allows for GP Advanced Calculations’ mathematical functions and formulas to be leveraged while working with Gravity PDF’s Invoicing templates.

There’s a variety of sleek templates to choose from and all templates integrate with GP eCommerce FieldsGP InventoryGP Conditional PricingGP Unique ID, and GP Price Range. Learn more about Gravity PDF’s invoicing templates here.

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