Home / Sports / Basketball / [NBA EFF] Basketball Efficiency Calculator[NBA EFF] Basketball Efficiency Calculator Please enable JavaScript in your web browser for the live calculations to work properly. NBA Efficiency Calculator Assists: Rebounds: Points: Blocks: Turnovers: MFG: MFT: Steals: Game played: Played minutes: Calculation: EFF: Per game played EFF: EFF per 48 Minutes: EFF per 40 Minutes: Update Reset Print AllIs this calculator helpful? Helpful 0 Time wasting 0 Share on: