Tools

Calculate area and volume for 2D and 3D geometric shapes.

Perform binary arithmetic and bitwise operations: AND, OR, XOR, NOT, shift.

Calculate Body Mass Index from height and weight with health category display.

Convert between bytes, KB, MB, GB, TB and their binary equivalents (KiB, MiB, GiB, TiB).

Calculate compound interest with flexible compounding frequencies and visualize growth.

Balance and solve simple linear equations step by step.

Generate Fibonacci sequences and check if a number belongs to the sequence.

Add, subtract, multiply, and divide fractions with automatic simplification.

Find the greatest common divisor (GCD) and least common multiple (LCM) of numbers.

Convert between hexadecimal, decimal, octal, and binary number systems.

Evaluate mathematical expressions with functions, constants, and operator precedence.

Perform matrix operations: add, multiply, transpose, determinant, and inverse.

Convert numbers between binary, octal, decimal, and hexadecimal bases.

Identify arithmetic, geometric, and custom number sequences and predict next terms.

Calculate percentages, percentage change, increase/decrease, and fraction to percent conversions.

Calculate permutations (nPr), combinations (nCr), and factorials.

Check if numbers are prime, find prime factors, and generate primes in a range.

Solve quadratic equations (ax² + bx + c = 0) with step-by-step solutions.

Generate random numbers, dice rolls, coin flips, and lottery picks with constraints.

Solve ratios and proportions, scale values, and simplify ratios.

Convert between decimal numbers and Roman numerals instantly.

Full scientific calculator with trigonometry, logarithms, powers, and calculation history.

Convert between standard numbers, scientific notation, and engineering notation.

Calculate speed, distance, or time — solve for any missing variable.

Calculate mean, median, mode, standard deviation, variance, range, and quartiles.

Calculate trigonometric functions, inverse trig, and convert between degrees and radians.

Convert between common units: length, weight, temperature, data size, time, and CSS units (px/rem/em).