Choose from our ever-growing collection of 149+ calculators to suit your needs.
Calculate mean, median, variance, standard deviation, quartiles, and IQR for any dataset, sample or population.
Open Calculator →Calculate IPv4 subnet network, broadcast, usable hosts, wildcard mask, and divide a subnet into smaller blocks.
Open Calculator →Generate random integers, decimals, coin flips, dice rolls, or shuffle a list using cryptographic randomness.
Open Calculator →Calculate Watt-Volt-Ampere, capacitor (reactance/time constant), kWh consumption, and 3-phase power for industrial use.
Open Calculator →Addition, subtraction, multiplication, division of positive & negative integers with sign rules and number line visualization.
Open Calculator →Calculate area and perimeter of various 2D shapes: square, triangle, circle, trapezoid, rhombus, and regular polygons.
Open Calculator →Calculate triangle sides using the Pythagorean theorem, determine triangle type, compute area & perimeter, and visualize with SVG.
Open Calculator →Calculate the nth term and sum of n terms for arithmetic and geometric sequences, infinite series, and detect sequence patterns.
Open Calculator →Calculate logarithms of any base, anti-logarithms, logarithmic equations, and verify logarithmic properties.
Open Calculator →Plot mathematical functions (polynomial, trigonometric, exponential). Graph up to 3 functions simultaneously.
Open Calculator →Full-featured scientific calculator: trigonometry, logarithms, powers, roots, factorials, and memory. Supports DEG/RAD modes.
Open Calculator →Calculate function limits numerically. Includes a table of 12 basic limits, indeterminate forms, and L'Hopital's rule.
Open Calculator →Calculate velocity, force, kinetic energy, potential energy, and Ohm's law. Five fundamental physics formulas.
Open Calculator →Calculate molar mass from chemical formulas and convert between grams, moles, and particle counts.
Open Calculator →Calculate absolute values, solve equations |ax+b|=c and inequalities |ax+b|<c. Includes number line visualization.
Open Calculator →Round numbers to various precisions: whole numbers, decimal places, tens, thousands, significant figures, and banker's rounding.
Open Calculator →Perform division with step-by-step long division, remainders, fractions, and divisibility rules.
Open Calculator →Solve ax²+bx+c=0 using the quadratic formula. Includes parabola visualization, vertex calculation, and Vieta's formulas.
Open Calculator →Compute derivatives of functions numerically and view a reference table of basic derivative formulas.
Open Calculator →Calculate mean, median, mode, standard deviation, variance, and quartiles from a dataset.
Open Calculator →Convert units of length, weight, volume, area, and speed instantly.
Open Calculator →Calculate combinations C(n,r), permutations P(n,r), and factorials n! with step-by-step solutions.
Open Calculator →Calculate sin, cos, tan, and their inverses. Includes special angle value tables, identities, and the unit circle.
Open Calculator →Compute matrix addition, multiplication, determinant, inverse, and transpose for 2x2 to 4x4 matrices.
Open Calculator →Calculate definite integrals using Simpson's rule. Includes a table of 20 basic integrals and integration rules.
Open Calculator →Determine the required sample size for research using Slovin's formula based on population size and margin of error.
Open Calculator →Convert temperatures between Celsius, Fahrenheit, Kelvin, and Reamur instantly.
Open Calculator →Calculate powers (exponents), square/cube roots, logarithms, and convert scientific notation. Complete with formulas and reference tables.
Open Calculator →Decode resistor values from color bands (4 & 5 band) or find the color code from a resistance value. Includes a visual resistor diagram.
Open Calculator →Perform addition, subtraction, multiplication, and division of fractions. Results shown in simplified, mixed, and decimal forms.
Open Calculator →Add or subtract hours, minutes, and seconds. Calculate time differences and convert between time units.
Open Calculator →Calculate percentages: X% of Y, percentage change, and add/subtract percentages. Complete with formulas and explanations.
Open Calculator →Convert numbers between decimal, binary, octal, and hexadecimal bases instantly.
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