Gravity Forms Excel Calculations

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Turn Any Gravity Form Into a Live Excel-Style Calculator

Gravity Forms Excel Calculations brings the full power of Excel and Google Sheets formulas directly into your Gravity Forms. Build dynamic price calculators, mortgage tools, invoice forms, and quote builders — without a single line of code. Just type =SUM(A1,B1) and watch your form calculate in real time.

⚡ Why Choose This Plugin?

  • No third-party libraries — 100% custom-built, lightweight formula engine
  • Works seamlessly with Gravity Forms’ payment system (Stripe, PayPal, Authorize.net)
  • Live recalculation on every keystroke — no page reload needed
  • Excel-style autocomplete with 70+ function suggestions right in the field editor
  • Full conditional logic compatibility — calculations survive GF’s show/hide events
  • Supports text, number, checkbox, radio, select, total, and product fields

🔢 70+ Built-In Excel Functions

All the functions you already know from Excel and Google Sheets, ready to use:

Math & Rounding

SUM, PRODUCT, AVERAGE, MIN, MAX, ABS, SQRT, POWER, MOD, INT, TRUNC, ROUND, ROUNDUP, ROUNDDOWN, CEILING, FLOOR, MROUND, EVEN, ODD, SIGN, EXP, LN, LOG, LOG10, PI, FACT, GCD, LCM, COMBIN, RANDBETWEEN

Logic & Conditional

IF, IFS, SWITCH, AND, OR, NOT, XOR, IFERROR, IFNA, TRUE, FALSE, ISNUMBER, ISBLANK, ISTEXT, ISERROR, ISEVEN, ISODD

Text

CONCAT, CONCATENATE, LEFT, RIGHT, MID, LEN, UPPER, LOWER, PROPER, TRIM, TEXT, VALUE, FIND, SEARCH, SUBSTITUTE, REPLACE, REPT, DOLLAR, FIXED, CHAR, CODE, EXACT

Financial

PMT, PV, FV, NPER — build mortgage calculators, loan estimators, and investment tools with zero custom code

Date & Time

TODAY, NOW, YEAR, MONTH, DAY, WEEKDAY, HOUR, MINUTE, SECOND

Helpers

PERCENT, PERCENTOF — instantly convert user-entered percentages into decimal multipliers for discount and tax calculations

✨ Smart Formula Autocomplete

The field settings panel in the Gravity Forms editor features built-in formula autocomplete — just like Excel. Type = to see every available function. Keep typing to filter. Use arrow keys to navigate and Enter to insert. A signature hint shows parameter names while you type arguments. Your form’s own data cell names appear as suggestions too.

📋 How It Works

  1. Assign a Data Cell name to each input field (e.g. QTY, PRICE)
  2. Add a formula to your output field (e.g. =QTY*PRICE on a Total field)
  3. Save the form — calculations run live as visitors fill it out

💰 Payment Gateway Ready

Formula results on Total fields integrate directly with Gravity Forms’ payment system. The calculated amount is automatically:

  • Formatted with your site’s currency symbol and decimal settings
  • Validated server-side (bypasses GF’s native product-sum check)
  • Passed to Stripe, PayPal, Authorize.net and other payment add-ons as the charge amount
  • Saved to the entry database on submission

🏗️ Real-World Use Cases

  • Price Calculator — =QTY * PRICE
  • Tiered Discounts — =IFS(QTY>=100, QTY*PRICE*0.7, QTY>=10, QTY*PRICE*0.9, 1, QTY*PRICE)
  • Mortgage Calculator — =IFERROR(ABS(PMT(RATE/100/12, YEARS*12, LOAN)), 0)
  • Tax & Invoice — chain Subtotal → Tax Amount → Grand Total across multiple fields
  • Service Booking — =HOURS * SWITCH(PACKAGE, 1,25, 2,45, 3,75, 0)
  • Conditional Pricing — =IF(AND(QTY>0, MEMBER="yes"), QTY*PRICE*0.8, QTY*PRICE)

⚙️ Supported Field Types

  • Data Cell inputs: Text, Number, Textarea, Select, Multiselect, Date, Checkbox, Radio
  • Formula outputs: Total (with currency formatting), Number, Text

📦 Requirements

  • WordPress 5.0+
  • Gravity Forms 2.5+ (Add-On Framework)
  • PHP 7.4+ (PHP 8.x supported)

📚 Full Documentation Included

A complete HTML documentation site is included in the /docs folder — installation guide, field settings reference, formula cheatsheet, 5 real-world examples, and a full function reference for all 70+ functions. Open it in any browser, no server required.

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