Interactive Math Solvers & Tools

Perform all fraction arithmetic (+, −, ×, ÷), simplifying, and conversions.

Find percentages, percentage change, increase, and decrease with steps.

Calculate exact percentage growth, increase, and decrease.

Reduce any fraction to its lowest irreducible terms using GCF.

Calculate Greatest Common Factor and Least Common Multiple instantly.

Test primality, factor lists, and interactive Sieve of Eratosthenes.

Generate canonical prime factor trees and exponential forms.

Instant divisibility tests for numbers 2 through 12.

Interactive multiplication table practice from 1 to 12.

Find every factor pair and divisor of any positive integer.

Break numbers into ones, tens, hundreds, and expanded form.

Round to nearest tenth, hundredth, whole, or significant figures.

Simplify ratios A:B, find equivalent ratios, and solve proportions.

Trigonometry, logarithms, powers, and full parenthesized equations.

Solve 1-step and 2-step linear equations for x with full working.

Solve ax² + bx + c = 0 with discriminant and step-by-step roots.

Compute any base raised to positive, negative, or fractional power.

Calculate log10, natural log (ln), and arbitrary base logs.

Convert between standard decimal and scientific notation (a × 10^b).

Calculate absolute distance |x| from zero on the number line.

Interactive Cartesian coordinate plotter for functions and lines.

Area, perimeter, volume, and surface area for all standard shapes.

Solve right triangles with a² + b² = c² and trigonometric ratios.

Mean, sample/population variance, standard deviation, and range.

Measures of central tendency for any list of numbers.

Single and compound event probabilities and odds ratios.

Calculate nCr and nPr with step-by-step factorial breakdowns.

Calculate n! for positive integers with full expansion steps.

Convert between Binary, Octal, Decimal, and Hexadecimal.

Convert between Arabic numbers (1–3999) and Roman numerals.

Convert Length, Mass, Volume, Temperature, and Speed.

Solve for Speed (s=d/t), Distance (d=s×t), or Time (t=d/s).

Calculate final sale prices, money saved, and tax add-ons.

Calculate tip percentages and split bills among multiple people.

Calculate Semester and Cumulative Grade Point Averages.

Calculate final grades based on weighted assignments and exams.

Calculate Body Mass Index and healthy weight ranges.

Calculate exact age in years, months, days, hours, and minutes.