Area Area unit conversion Value to be converted Initial Unit Converted Values square meter m2 hectare ha square kilometer km2 darcy d sqare inch in2 sqare foot ft2 sqare yard yd2 acre acre sqare mile mi2 Login Username or Email: Password: signup now | forgot password? Remember Me Sign up for free if you are not a member already. Get Heat Exchanger Design SoftwareAdvertise with us Advertise directly with us. Get links to your website. Reach out to our reader base of engineering professionals. Email - admin@enggcyclopedia.com