Sunquist & Sunquist (2002 -- 'Wild Cats of the World' - U. of Chicago Press) report that adult male lions stand ~123 cm at the shoulder, and weigh from 145-225 kg; adult female lions are somewhat smaller, standing ~107 cm at the shoulder and weighing from 83-168 kg.
An online source that would be another reliable source that you could consult is 'Mammalian Species' -- see: Article Panthera leo