🔢Math Calculators
Scientific, statistics, geometry, and advanced math calculators. Explore our full inventory of 46 verified calculators organized by topic below.
⭐ Featured & Most Used
Scientific Calculator
A full-featured scientific calculator with trig, log, exponentials, memory, and keyboard support.
Fraction Calculator
Free online fractions calculator with step-by-step solutions. Add, subtract, multiply, divide, and simplify proper, improper, and mixed fractions.
Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
Standard Deviation Calculator
Calculate population and sample standard deviation, variance, and mean from a dataset.
Statistics Calculator
Calculate comprehensive statistics: mean, median, mode, range, variance, standard deviation.
Basic Calculator
A simple 4-function calculator for addition, subtraction, multiplication, and division.
➗Fractions, Decimals & Arithmetic(9)
Fraction operations with simplification, percentages, rounding modes, long division with remainders, and ratios.
Fraction Calculator
Free online fractions calculator with step-by-step solutions. Add, subtract, multiply, divide, and simplify proper, improper, and mixed fractions.
Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
Rounding Calculator
Round numbers to any decimal place or significant figure using common rounding rules.
Long Division Calculator
Perform long division with step-by-step shown quotient, remainder, and decimal.
Ratio Calculator
Simplify ratios, solve proportions, and find missing values in ratio problems.
Percent Error Calculator
Calculate the percentage error between an experimental value and the true value.
Average Calculator
Calculate the arithmetic mean (average) of a list of numbers.
Basic Calculator
A simple 4-function calculator for addition, subtraction, multiplication, and division.
Modulo Calculator
Calculate the modulo (remainder after division) of any two numbers.
📐Algebra, Powers & Logarithms(9)
Quadratic equation roots, nth roots, exponents, logarithms, scientific notation, and matrix calculations.
Quadratic Formula Calculator
Solve quadratic equations ax² + bx + c = 0 with discriminant analysis and complex roots.
Root Calculator
Calculate square roots, cube roots, and nth roots of any number.
Exponent Calculator
Calculate base raised to any power, including fractional and negative exponents.
Log Calculator
Calculate logarithms with any base, natural log (ln), and log base 10.
Antilog Calculator
Calculate antilogarithms (inverse logarithm) for any base.
Scientific Calculator
A full-featured scientific calculator with trig, log, exponentials, memory, and keyboard support.
Scientific Notation Calculator
Convert numbers to and from scientific notation, and perform arithmetic in scientific notation.
Matrix Calculator
Perform matrix operations: addition, subtraction, multiplication, transpose, determinant, inverse.
Slope Calculator
Calculate slope, angle, distance, and midpoint between two points on a coordinate plane.
📊Statistics, Probability & Data Analysis(10)
Standard deviation, sample size determination, hypothesis p-values, z-scores, confidence intervals, and odds.
Standard Deviation Calculator
Calculate population and sample standard deviation, variance, and mean from a dataset.
Sample Size Calculator
Calculate the required sample size for statistical surveys with given confidence level and margin of error.
Statistics Calculator
Calculate comprehensive statistics: mean, median, mode, range, variance, standard deviation.
Mean, Median, Mode, Range Calculator
Find the mean, median, mode, and range for any set of numbers.
Z-Score Calculator
Calculate z-scores and find corresponding p-values and areas under the normal curve.
P-Value Calculator
Calculate p-values for z-tests, t-tests, and chi-square tests for hypothesis testing.
Confidence Interval Calculator
Calculate confidence intervals for means and proportions at any confidence level.
Probability Calculator
Calculate probability for single and multiple events, including union and intersection.
Permutation and Combination Calculator
Calculate permutations P(n,r) and combinations C(n,r) with step-by-step solutions.
Random Number Generator
Generate random integers or decimals within a custom range with optional uniqueness.
🔢Number Theory, Factors & Binary Systems(9)
Greatest common factor, least common multiple, prime factoring, number sequences, binary, and hexadecimal conversion.
Greatest Common Factor Calculator
Find the Greatest Common Factor (GCF/GCD) of two or more integers.
Least Common Multiple Calculator
Find the Least Common Multiple (LCM) of two or more integers.
Factor Calculator
Find all factors of a number and determine if it is prime.
Common Factor Calculator
Find all common factors (shared divisors) of two or more numbers.
Prime Factorization Calculator
Find the prime factorization of any integer using a factor tree.
Number Sequence Calculator
Identify and generate arithmetic, geometric, and Fibonacci number sequences.
Binary Calculator
Perform arithmetic on binary numbers and convert between binary, decimal, octal, and hex.
Hex Calculator
Perform arithmetic on hexadecimal numbers and convert between hex, decimal, and binary.
Big Number Calculator
Perform exact arithmetic on very large integers beyond standard double precision.
📏Geometry, Trigonometry & Measurement(9)
Triangle properties, right triangles, Pythagorean theorem, area, 3D volume, surface area, and distance.
Triangle Calculator
Calculate all sides, angles, area, and perimeter of any triangle from partial inputs.
Right Triangle Calculator
Solve right triangles: find all sides and angles from any two known values.
Pythagorean Theorem Calculator
Find the missing side of a right triangle using the Pythagorean theorem a² + b² = c².
Volume Calculator
Calculate volume of 11 3D shapes: cube, sphere, cylinder, cone, pyramid, and more.
Area Calculator
Calculate area of 10 shapes: square, rectangle, circle, triangle, trapezoid, and more.
Surface Area Calculator
Calculate surface area of 3D shapes: cube, sphere, cylinder, cone, and more.
Circle Calculator
Calculate radius, diameter, circumference, and area of a circle from any one measurement.
Distance Calculator
Calculate the distance between two points using the distance formula on a 2D coordinate plane.
Half-Life Calculator
Calculate the remaining quantity after radioactive decay using the half-life formula.
📋 Complete A-Z Directory (46)
Browse every math calculators available on CalculatorDigital.
Antilog Calculator
Calculate antilogarithms (inverse logarithm) for any base.
Area Calculator
Calculate area of 10 shapes: square, rectangle, circle, triangle, trapezoid, and more.
Average Calculator
Calculate the arithmetic mean (average) of a list of numbers.
Basic Calculator
A simple 4-function calculator for addition, subtraction, multiplication, and division.
Big Number Calculator
Perform exact arithmetic on very large integers beyond standard double precision.
Binary Calculator
Perform arithmetic on binary numbers and convert between binary, decimal, octal, and hex.
Circle Calculator
Calculate radius, diameter, circumference, and area of a circle from any one measurement.
Common Factor Calculator
Find all common factors (shared divisors) of two or more numbers.
Confidence Interval Calculator
Calculate confidence intervals for means and proportions at any confidence level.
Distance Calculator
Calculate the distance between two points using the distance formula on a 2D coordinate plane.
Exponent Calculator
Calculate base raised to any power, including fractional and negative exponents.
Factor Calculator
Find all factors of a number and determine if it is prime.
Fraction Calculator
Free online fractions calculator with step-by-step solutions. Add, subtract, multiply, divide, and simplify proper, improper, and mixed fractions.
Greatest Common Factor Calculator
Find the Greatest Common Factor (GCF/GCD) of two or more integers.
Half-Life Calculator
Calculate the remaining quantity after radioactive decay using the half-life formula.
Hex Calculator
Perform arithmetic on hexadecimal numbers and convert between hex, decimal, and binary.
Least Common Multiple Calculator
Find the Least Common Multiple (LCM) of two or more integers.
Log Calculator
Calculate logarithms with any base, natural log (ln), and log base 10.
Long Division Calculator
Perform long division with step-by-step shown quotient, remainder, and decimal.
Matrix Calculator
Perform matrix operations: addition, subtraction, multiplication, transpose, determinant, inverse.
Mean, Median, Mode, Range Calculator
Find the mean, median, mode, and range for any set of numbers.
Modulo Calculator
Calculate the modulo (remainder after division) of any two numbers.
Number Sequence Calculator
Identify and generate arithmetic, geometric, and Fibonacci number sequences.
P-Value Calculator
Calculate p-values for z-tests, t-tests, and chi-square tests for hypothesis testing.
Percent Error Calculator
Calculate the percentage error between an experimental value and the true value.
Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
Permutation and Combination Calculator
Calculate permutations P(n,r) and combinations C(n,r) with step-by-step solutions.
Prime Factorization Calculator
Find the prime factorization of any integer using a factor tree.
Probability Calculator
Calculate probability for single and multiple events, including union and intersection.
Pythagorean Theorem Calculator
Find the missing side of a right triangle using the Pythagorean theorem a² + b² = c².
Quadratic Formula Calculator
Solve quadratic equations ax² + bx + c = 0 with discriminant analysis and complex roots.
Random Number Generator
Generate random integers or decimals within a custom range with optional uniqueness.
Ratio Calculator
Simplify ratios, solve proportions, and find missing values in ratio problems.
Right Triangle Calculator
Solve right triangles: find all sides and angles from any two known values.
Root Calculator
Calculate square roots, cube roots, and nth roots of any number.
Rounding Calculator
Round numbers to any decimal place or significant figure using common rounding rules.
Sample Size Calculator
Calculate the required sample size for statistical surveys with given confidence level and margin of error.
Scientific Calculator
A full-featured scientific calculator with trig, log, exponentials, memory, and keyboard support.
Scientific Notation Calculator
Convert numbers to and from scientific notation, and perform arithmetic in scientific notation.
Slope Calculator
Calculate slope, angle, distance, and midpoint between two points on a coordinate plane.
Standard Deviation Calculator
Calculate population and sample standard deviation, variance, and mean from a dataset.
Statistics Calculator
Calculate comprehensive statistics: mean, median, mode, range, variance, standard deviation.
Surface Area Calculator
Calculate surface area of 3D shapes: cube, sphere, cylinder, cone, and more.
Triangle Calculator
Calculate all sides, angles, area, and perimeter of any triangle from partial inputs.
Volume Calculator
Calculate volume of 11 3D shapes: cube, sphere, cylinder, cone, pyramid, and more.
Z-Score Calculator
Calculate z-scores and find corresponding p-values and areas under the normal curve.
Math Calculators FAQs
Are the math calculators free to use?
Yes, all 46 math calculators on CalculatorDigital are 100% free with no registration, no ads blocking inputs, and no usage limits.
Do the math calculators show step-by-step solutions?
Many do. Fraction, percentage, quadratic formula, and statistics calculators display step-by-step breakdowns. The Scientific Calculator includes a full expression parser with memory functions.
Which math calculators are most useful for students?
Students most frequently use the Fraction Calculator, Percentage Calculator, Scientific Calculator, Quadratic Formula Calculator, Statistics Calculator, and Long Division Calculator for homework and exam prep.