How to Calculate Rectangle Area

    The area of a rectangle is simply length multiplied by width. This fundamental formula is used in construction, real estate, farming, and daily life.

    Rectangle Area Formula

    A = length × width

    Where:

    • A = Area
    • l = Length
    • w = Width

    Step-by-Step:

    1. 1

      Measure length and width

      Ensure both measurements use the same unit.

    2. 2

      Multiply

      Multiply length by width to get area in square units.

    Worked Examples:

    Room floor

    l: 12 ftw: 10 ft

    Result: 120 sq ft

    A = 12 × 10 = 120 sq ft

    Frequently Asked Questions