Math Calculators · cluster
Free Algebra & Equations Calculators
Solving for unknowns and manipulating expressions.
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18 calculators in this cluster
Free Percentage Calculator
Percent of a number, percent change, and reverse percent problems.
Free Percent Error Calculator
Absolute and percent error between a measured and accepted value.
Free Fraction Calculator
Add, subtract, multiply, or divide two fractions with simplification.
Free Exponent Calculator
Compute any base raised to any power, including fractional and negative.
Free Log Calculator
Logarithm in any base, plus natural log and log base 10.
Free Root Calculator
nth root of a number.
Free Quadratic Formula Calculator
Solve ax² + bx + c = 0 for real or complex roots.
Free Ratio Calculator
Solve A:B = C:D for the missing term.
Free Percentage Change Calculator
Increase or decrease between two numbers.
Free Factorial Calculator
n! for whole numbers, with digit count.
Free Sequence Calculator
Arithmetic and geometric sequence terms and sums.
Free Complex Number Arithmetic Calculator
Add, subtract, multiply and divide complex numbers.
Free Cubic Equation Root Calculator
Real root(s) of ax³ + bx² + cx + d = 0.
Free Linear Equation Solver
Solve ax + b = c for x.
Free Parallelogram Area Calculator
Area of a parallelogram from base and height.
Free System of Two Equations Calculator
Solve a1x + b1y = c1 and a2x + b2y = c2.
Free Modulo Calculator
Remainder of a division (a mod n).
Free Proportion Solver
Solve for the missing value in a/b = c/d.
Concepts you'll meet here
Related clusters in math calculators
Free Geometry & Shapes Calculators
Length, area, volume and angle in two and three dimensions.
Free Statistics & Probability Calculators
Describing data and quantifying uncertainty.
Free Number Tools & Notation Calculators
Bases, factors, rounding and precision.
Free Academic & Grades Calculators
Weighted averages applied to education.