Qalculators

56 calculators

Math calculators

Math calculators cover the everyday and the technical: percentages, roots, areas, volumes, and basic statistics. Use this cluster when you need a precise result without opening a spreadsheet.

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01

Percentage Calculator

Calculate percentages, percentage change, and percentage of a number

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02

Percentage Change Calculator

Calculate the percentage change between two values

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03

Square Root Calculator

Calculate the square root of any number

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04

Exponent Calculator

Calculate base raised to the power of exponent

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05

Average Calculator

Calculate the average (mean) of a set of numbers

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06

Factorial Calculator

Calculate the factorial of a number (n!)

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07

Permutation Calculator

Calculate the number of permutations P(n, r)

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08

Combination Calculator

Calculate the number of combinations C(n, r)

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09

GCD Calculator

Calculate the Greatest Common Divisor (GCD) of two numbers

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10

LCM Calculator

Calculate the Least Common Multiple (LCM) of two numbers

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11

Standard Deviation Calculator

Calculate mean, variance, and standard deviation of a set of numbers

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12

Percentage of Number Calculator

Calculate what percentage of a number equals another number

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13

Percentage Increase Calculator

Calculate percentage increase or decrease between two values

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14

Ratio Calculator

Calculate and simplify ratios between two numbers

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15

Circle Area Calculator

Calculate the area, circumference, and diameter of a circle

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16

Rectangle Area Calculator

Calculate the area, perimeter, and diagonal of a rectangle

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17

Triangle Area Calculator

Calculate the area and perimeter of a triangle using Heron's formula

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18

Pythagorean Theorem Calculator

Calculate the missing side of a right triangle using Pythagorean theorem

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19

Quadratic Equation Calculator

Solve quadratic equations of the form ax² + bx + c = 0

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20

Percentage Difference Calculator

Calculate the percentage difference between two values

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21

Percentage Error Calculator

Calculate percentage error between actual and theoretical values

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22

Cube Volume Calculator

Calculate the volume and surface area of a cube

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23

Cylinder Volume Calculator

Calculate the volume and surface area of a cylinder

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24

Sphere Volume Calculator

Calculate the volume and surface area of a sphere

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25

Cone Volume Calculator

Calculate the volume and surface area of a cone

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26

Trapezoid Area Calculator

Calculate the area and perimeter of a trapezoid

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27

Parallelogram Area Calculator

Calculate the area and perimeter of a parallelogram

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28

Rhombus Area Calculator

Calculate the area and perimeter of a rhombus

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29

Hexagon Area Calculator

Calculate the area and perimeter of a regular hexagon

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30

Octagon Area Calculator

Calculate the area and perimeter of a regular octagon

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31

Matrix Determinant Calculator (2x2)

Calculate the determinant of a 2x2 matrix

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32

Matrix Multiplication Calculator (2x2)

Multiply two 2x2 matrices

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33

Derivative Calculator

Calculate the derivative of a polynomial function

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34

Logarithm Calculator

Calculate logarithm with any base, natural log, and log base 10

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35

Trigonometry Calculator

Calculate sine, cosine, and tangent of an angle

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36

Median Calculator

Calculate the median of a set of numbers

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37

Mode Calculator

Calculate the mode (most frequent value) of a set of numbers

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38

Integral Calculator

Calculate the integral (antiderivative) of a polynomial function

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39

Range Calculator

Calculate the range (difference between max and min) of a set of numbers

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40

Quartiles Calculator

Calculate quartiles (Q1, Q2, Q3) and interquartile range (IQR)

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41

Variance Calculator

Calculate variance, standard deviation, and mean of a set of numbers

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42

Z-Score Calculator

Calculate the Z-score (standard score) of a value

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43

Nth Root Calculator

Calculate the nth root of a number

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44

Scientific Notation Calculator

Convert numbers to scientific notation format

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45

Slope Calculator

Calculate the slope of a line from two points

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46

Distance Calculator (2D)

Calculate the distance between two points in 2D space

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47

Distance Calculator (3D)

Calculate the distance between two points in 3D space

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48

Complex Number Calculator

Perform operations on complex numbers (add, subtract, multiply, divide)

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49

Vector Dot Product Calculator

Calculate the dot product of two 3D vectors

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50

Vector Cross Product Calculator

Calculate the cross product of two 3D vectors

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51

Normal Distribution Calculator

Calculate probability using normal distribution

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52

Lottery Odds Calculator

Calculate the probability of winning a lottery.

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53

Confidence Interval Calculator

Calculate confidence intervals for statistical analysis

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54

Bayes' Theorem Calculator

Calculate posterior probability using Bayes' theorem

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55

Prime Number Checker

Check if a number is prime and find its factors

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56

Significant Figures Calculator

Calculate and identify significant figures in a number

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268 calculators