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    Area & Drawings

    Advanced Polygon Area Calculator — Draw, Add and Subtract Zones

    Start with easy mode: choose a rectangle, triangle or L shape, enter its width and height, and press Add section or Subtract area. The net area appears immediately. For precise irregular boundaries, switch to Draw polygon and tap corners or edit coordinates. Easy mode assumes sections do not overlap; drawing mode validates polygon geometry.

    MAKE IT SIMPLE
    Estimated net area80 ㎡
    Add or subtract sections
    Area 1 · Add

    10 × 8 = 80 ㎡

    Use separate, non-overlapping sections. Excluded dimensions must belong to the measured area; overlaps are not detected in easy mode.

    Example: L-shaped floor

    Choose L-shaped, enter outer width and height, then enter the width and height of the missing corner. For multiple separate rooms, choose Add section; for a void or opening choose Subtract.

    Result

    Worked examples

    + 0,0; 10,0; 10,8; 0,8 and interior 2×2 cutout

    80−4 = 76 m²

    Start with easy mode: choose a rectangle, triangle or L shape, enter its width and height, and press Add section or Subtract area. The net area appears immediately. For precise irregular boundaries, switch to Draw polygon and tap corners or edit coordinates. Easy mode assumes sections do not overlap; drawing mode validates polygon geometry.

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