📐 Math & Science Calculators
Algebra, geometry, physics, chemistry calculators for students. 42 free calculators available.
Scientific Calculator
Full-featured scientific calculator with trigonometry, logarithms and more
Fraction Calculator
Add, subtract, multiply and divide fractions with step-by-step solutions
Percentage Change Calculator
Calculate percentage increase or decrease between two values
Quadratic Equation Solver
Solve quadratic equations with step-by-step workings using the formula
Simultaneous Equation Solver
Solve systems of 2 or 3 linear equations with step-by-step solutions
Pythagorean Theorem Calculator
Calculate the missing side of a right triangle using a² + b² = c²
Area Calculator
Calculate area of circles, triangles, rectangles, trapezoids and more
Volume Calculator
Calculate volume of cubes, spheres, cylinders, cones and pyramids
Circle Calculator
Calculate radius, diameter, circumference and area of a circle
Triangle Calculator
Calculate sides, angles, area and perimeter of any triangle
Logarithm Calculator
Calculate log, ln, log2 and custom base logarithms
Exponent Calculator
Calculate powers and exponents with step-by-step explanation
Square Root Calculator
Calculate square roots, cube roots and nth roots
Factorial Calculator
Calculate factorials and permutations for combinatorics
Matrix Calculator
Perform matrix operations: addition, multiplication, inverse, determinant
Standard Deviation Calculator
Calculate mean, variance, standard deviation from a data set
Mean, Median, Mode Calculator
Calculate central tendency measures from a data set
Probability Calculator
Calculate probability of events, combinations and permutations
LCM Calculator
Find the Least Common Multiple of two or more numbers
HCF / GCD Calculator
Find the Highest Common Factor of two or more numbers
Binary Calculator
Convert between binary, decimal, octal and hexadecimal number systems
Trigonometry Calculator
Calculate sin, cos, tan and inverse trig functions with explanations
Slope Calculator
Calculate slope, distance and equation of a line between two points
Derivative Calculator
Find derivatives of functions with step-by-step differentiation
Integral Calculator
Calculate definite and indefinite integrals with steps
Permutation & Combination Calculator
Calculate nPr and nCr for probability and counting problems
Number Sequence Calculator
Find nth term and sum of arithmetic and geometric sequences
Ratio Calculator
Simplify ratios, find equivalent ratios and solve proportions
Velocity Calculator
Calculate velocity, distance, time and acceleration in physics
Force Calculator (F=ma)
Calculate force, mass and acceleration using Newton's second law
Energy Calculator
Calculate kinetic, potential and work energy with physics formulas
Ohm's Law Calculator
Calculate voltage, current, resistance and power in electrical circuits
Molar Mass Calculator
Calculate molar mass of chemical compounds from their formula
Molarity Calculator
Calculate molarity, moles and volume for solution preparation
Dilution Calculator (C1V1=C2V2)
Calculate solution dilution using the dilution equation
Significant Figures Calculator
Round numbers to specified significant figures
Cross Multiplication Calculator
Solve proportions using cross multiplication method
Decimal to Fraction Converter
Convert decimals to fractions and fractions to decimals
Roman Numeral Converter
Convert between Roman numerals and Arabic numbers
Random Number Generator
Generate random numbers, passwords and lottery numbers
Modulo Calculator
Calculate the remainder of division (modulus operation)
Half-Life Calculator
Calculate radioactive decay and half-life for chemistry and physics