Add-on: Advanced Number Field
This plugin provides advanced functionality to the default Gravity Forms Number Field, like rounding numbers, only absolute numbers, fixed point notation up to 5 decimals, range calculation, custom units like % or m2, show number field as slider.
Styling the Range Slider
Style your sliders in the form settings.
Calculated min / max range
Enable Valid Range Calculation, calculating the minimum and maximum value dependent on other values in your Gravity Form using Merge Tags.
Min / Max Calculation for Formulas
Min() and Max() formula, calculate the minimum or maximum value from a range of fields using Merge Tags.
Fixed Point Notation
Enabling Fixed Point Notation will force a number to always have the specified number of decimals, even if it's zero.
Rounding
How to round numbers, decide on number of decimal places and rounding method (round, ceil, floor)
Range Slider Settings
Turn a Number Field into a (range) Slider.
Custom Units
Show custom units like % or m2 behind a Number Field value.