Area Converter
Convert area units for rooms, lots, land and technical calculations. Supported units include square millimeters, centimeters, meters, kilometers, inches, feet, yards, acres, hectares and square miles.
1 mm² =0.01 cm²
1 mm²0.01 cm²
10 mm²0.1 cm²
100 mm²1 cm²
Conversions use exact defined factors where standards provide them and conventional reference factors otherwise. Round the result to the precision appropriate for your application.
How this tool works
Area factors are squared length factors. For example, one square foot equals exactly 0.09290304 square meter.
Example
10,000 square feet is about 929.03 square meters or about 0.2296 acre.
Common questions
How many square feet are in an acre?
One acre contains exactly 43,560 square feet.
Can I calculate a room from length and width?
Use the Square Footage Calculator for dimensions and multiple rectangular areas; use this page when you already know the area.