Convert Square Feet to Square Meters Accurately

The conversion factor comes from the relationship between linear units (feet and meters):

• 1 foot (ft) = exactly 0.3048 meters (m) by international definition
• Area is calculated as length × width, so square units follow the square of linear conversion
• 1 sq ft = 1 ft × 1 ft = 0.3048 m × 0.3048 m = 0.09290304 sq m
• This precise value is standardized for consistency in global trade and construction

Both are imperial area units but differ in scale:

This converter focuses on sq ft to sq m, but you can convert sq yd to sq ft first (×9) if needed.

The required precision depends on the use case:

• Casual Estimates (0-1 decimals): Rough space comparisons, general planning
• Home Renovation (2 decimals): Flooring, paint, or tile calculations (avoids material waste)
• Real Estate (3-4 decimals): Property listings, appraisals, and sales (affects valuation)
• Construction (4+ decimals): Blueprint specs, commercial projects, and material ordering
• Legal Documents (4+ decimals): Property deeds, contracts, and international transactions

This converter defaults to 4 decimals to cover most professional needs while remaining readable.

Area measurement systems vary by region and industry:

For irregular shapes, follow these steps before conversion:

1. Break the shape into regular parts: Divide the space into rectangles, triangles, or circles
2. Calculate area of each part:
   • Rectangle: length × width
   • Triangle: (base × height) ÷ 2
   • Circle: π × (radius)²
3. Sum the areas: Add the areas of all parts to get total sq ft
4. Convert to sq m: Multiply total sq ft by 0.09290304

Example: A room with a rectangular main area (100 sq ft) and triangular nook (20 sq ft) = 120 sq ft total = 11.1484 sq m.