From Longman Dictionary of Contemporary Englishmiscalculationmis‧cal‧cu‧la‧tion /mɪsˌkælkjəˈleɪʃən/ noun [countable] 1 MISTAKEa mistake made in deciding how long something will take to do, how much money you will need etc2 MISTAKEa wrong judgment about a situation
Examples from the Corpus
miscalculation• Maybe she missed the channel into Angle Inlet by only a fraction of a mile, a miscalculation of gradient or degree.• I thought if I told Mark everything, it would be OK. That was a bad miscalculation.• There was one jaw-dropping miscalculation after another.• They are called: horrible blunders, astonishing lapses, incomprehensible oversights, gross miscalculations, and the like.• But seldom has a military miscalculation been so gross and retribution so immediate.• The President's election defeat was the result of his own miscalculations.• Alcohol might have played some part in this serious miscalculation.• This is the point at which to take a second look at the miscalculations of the census.• But on the other side of the ledger, reduced operating expenses offset the miscalculations.• The house was, he thought, a monument to miscalculation. 