Calculational is an adjective which describes something that is related to calculations. Synonyms for this word could include mathematical, computational, arithmetical, quantitative, numerical, or even analytical. These synonyms all have the same basic connotation as calculational, but have slightly different nuances. For example, mathematical might be used to describe a complex formula or equation, while computational could refer to a computer-based calculation. Arithmetical is more focused on simple arithmetic operations, and quantitative may be used to describe data analysis or statistical calculations. Overall, these synonyms provide different options to use when describing the process of making calculations.