Evaluate scientific expressions and solve percentage, fraction, ratio, GCF, LCM, and average questions with clear methods.
Find percentages, changes, increases, and differences.
Find the mean of any list of numbers.
Calculate an average when some values count more than others.
Calculate with fractions and simplify the exact result.
Simplify ratios, scale them, and solve proportions.
Find the greatest factor shared by multiple integers.
Find the smallest positive multiple shared by multiple integers.
Calculate with decimals and view the exact fraction.
Solve any missing term in an equivalent proportion.
Check whether a whole number is prime or composite.
Evaluate powers, roots, logs, trig functions, and expressions.
Every NumUtility calculator is designed for quick use and careful understanding. Your entries stay in your browser, results update immediately, and each tool includes the formula, examples, and answers to common questions.
Choose a tool above, or visit our number guides to learn the method behind the result.