Convert a floor area between square metres, Chinese square chi, square feet, square yards and ping, and see the same area in every unit at once. Add a shared-area ratio to split a gross building area into the shared area and the net internal area. These results are approximations for general information only, not a survey or a quote, and conversions use standard factors that may differ slightly from local practice.
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How to Use the Area Unit Converter
Type the area, choose the unit you have and the unit you want, and optionally set a shared-area ratio. Press Convert to see the area in the target unit plus a table of the value in every supported unit.
Units and factors
Square metre (m2) is the base unit.
Ping is common in Taiwan and Japan; 1 ping is about 3.3058 m².
Square chi is the Chinese area unit; 1 square chi is about 0.1111 m².
Square foot and square yard are imperial units (1 sq yd = 9 sq ft).
Gross and net area
The shared-area ratio splits the gross building area into the shared area and the net internal area. Property fees and sale prices often use the gross area, so the net figure helps you compare the usable space between homes.
Features
Convert between square metres, square chi, square feet, square yards and ping
All units shown at once, not just the target
Gross-to-net split from a shared-area ratio
Copy the result to your notes
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These results are approximations for general information only and are not a survey or legal advice. Conversion factors are standard values that may differ slightly from local practice.