Carpet To Built Up Area Converter RERA

Carpet to Built-up Converter

Convert carpet, built-up and super built-up area using RERA loading factors — editable percentages for Indian apartments.

Your data never leaves your browser — all processing happens locally on your device.

RERA loading factors vary by project (typical 15–25% carpet→built-up, 15–20% built-up→super). Edit percentages to match your builder's saleable area statement.

About this tool

Convert between carpet area, built-up area and super built-up (saleable) area for Indian real estate projects. Uses editable RERA-style loading factors — typically 15% carpet to built-up and 18% built-up to super built-up, but adjustable per builder. Essential for architects reviewing RERA sale statements and buyers comparing quoted areas. Free browser calculator — verify exact loading with your builder's agreement.

How to use the Carpet to Built-up Converter

  1. 1

    Choose conversion mode

    Carpet to built-up, built-up to super, or carpet to super in one step.

  2. 2

    Enter area and loading %

    Add your carpet/built-up area and adjust RERA loading percentages.

  3. 3

    Read converted area

    See the equivalent area in the other category.

Frequently Asked Questions

What are typical RERA loading factors?

Carpet to built-up: 15–25% (walls, ducts). Built-up to super: 15–20% (common areas, lift lobby).

Is carpet area the same as RERA carpet?

RERA carpet excludes external walls but includes internal partition walls. Loading factors may vary by project.

Can I convert super built-up back to carpet?

Reverse the loading factors — divide super by (1 + super%) then by (1 + carpet%).

Does this match my builder's brochure?

Builders use different loading percentages. Edit the % fields to match your project's saleable area statement.

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