0 to calculate an amount wrongly: --
[ + question word ] We had a lot of food left over from the party because I'd miscalculated how much people would eat.
He miscalculated badly when he underestimated the response of the international community to the invasion.
1 to make a mistake when calculating an amount or judging someone or something: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.