›to judge the amount or value of something by using information and esp. numbers: [+ question word]We tried to calculate how fast he was moving when the car crashed.I calculated the total cost to be over $9000.[+ that clause]Lieutenant Chilton calculated that six men had been lost.calculation
/ˌkæl·kjəˈleɪ·ʃən/n[C/U]›[C]The original calculations ignored weather conditions.