Percentage Calculator
Convert a part and whole into a percentage with a simple interpretation.
Formula: Part ÷ Whole × 100Mathematics tools
Mathematics Intelligence
Core math calculators for percentages, fractions, ratios, averages, roots, exponents, logarithms, equations, and number checks. Each tool explains the formula and what the result means.
Mathematics cluster standard
Mathematics calculators are designed for educational use. They show formulas, validate common edge cases, and guide learners toward related math tools.
Mathematics calculators included
Percentage Increase Calculator
Measure how much a value increased compared with its starting point.
Formula: (New − Original) ÷ Original × 100Percentage Decrease Calculator
Measure how much a value decreased compared with its starting point.
Formula: (Original − New) ÷ Original × 100Fraction Calculator
Simplify a fraction and understand its decimal value.
Formula: Numerator ÷ DenominatorDecimal Calculator
Convert a decimal into a percent and readable fraction-style context.
Formula: Decimal × 100 = PercentRatio Calculator
Simplify two values into a cleaner ratio for comparison.
Formula: A:B simplified by greatest common factorProportion Calculator
Solve a simple proportion and show the missing value.
Formula: A ÷ B = C ÷ X, so X = B × C ÷ AAverage Calculator
Find the average of a set of numbers.
Formula: Sum of values ÷ Number of valuesMean Calculator
Calculate the arithmetic mean for learning, grades, or general data.
Formula: Sum of values ÷ CountMedian Calculator
Find the middle value in a data set.
Formula: Middle value after sortingMode Calculator
Find the value that appears most often.
Formula: Most frequently occurring valuePrime Number Calculator
Check whether a whole number is prime.
Formula: A number is prime if only divisible by 1 and itselfGCF Calculator
Find the greatest common factor between two numbers.
Formula: Greatest common factor using Euclidean methodLCM Calculator
Find the least common multiple between two numbers.
Formula: |A × B| ÷ GCF(A,B)Exponent Calculator
Raise a base number to an exponent.
Formula: Base ^ ExponentSquare Root Calculator
Calculate the square root of a non-negative number.
Formula: √xScientific Calculator
Run common scientific-style operations using simple inputs.
Formula: Selected operation on two inputsEquation Solver Calculator
Solve a basic linear equation in the form ax + b = c.
Formula: ax + b = c, so x = (c − b) ÷ aLogarithm Calculator
Calculate a logarithm using a selected base.
Formula: log base b of xAbsolute Value Calculator
Find how far a number is from zero.
Formula: |x|How to use this cluster
- Choose the math operation closest to your problem.
- Enter values carefully and avoid zero where the formula cannot divide by zero.
- Review the formula note and the result explanation.
- Use a related calculator when you need a second step such as converting a decimal to a percent or simplifying a ratio.