An estimate is an approximation based on incomplete information.
Estimate may also refer to: Estimates, annual preliminary budget forecasts in the Westminster system of government Sales quote, estimate of cost provided to a potential buyer Appraisal (disambiguation), estimate of price provided to a potential seller Upper and lower bounds in mathematics Estimate (horse), a racehorse foaled in 2009 Estimate (card game), also called Oh Hell, Oh Pshaw or Nomination Whist Estimate of the Situation (Project Sign), a 1948 claimed U.S. government report on UFOs