MathMaster Tools

Free, premium online mathematics calculators, statistics profile builders, and conversions sheets. Learn math step-by-step with formulas and explanation graphs.

🔍
Number Theory

Prime Checker

Check if a number is prime, composite, or neither, and see its proper divisors.

Open Tool →
Number Theory

Prime Factorization

Find the prime factors of a number, along with its step-by-step division process and exponential representation.

Open Tool →
Number Theory

LCM Calculator

Compute the Least Common Multiple (LCM) of two or more integers.

Open Tool →
Number Theory

HCF / GCD Calculator

Compute the Highest Common Factor (HCF) or Greatest Common Divisor (GCD) of two or more numbers.

Open Tool →
Number Theory

Factorial Finder

Calculate the factorial of an integer, detailing the multiplication steps.

Open Tool →
Number Theory

Divisibility Checker

Check if a number is divisible by another number and explore divisibility rules from 2 to 20.

Open Tool →
Number Theory

Perfect Number Checker

Check if a number is a perfect number, deficient, or abundant based on the sum of its proper divisors.

Open Tool →
Number Theory

Even or Odd Checker

Instantly check if a number is even, odd, or neutral (zero).

Open Tool →
Number Theory

Roman Numeral Converter

Convert Arabic numbers (decimals) to Roman numerals and vice-versa with step-by-step conversion charts.

Open Tool →
Number Theory

Number Comparison

Compare multiple numbers or fractions and sort them in ascending or descending order.

Open Tool →
Fractions & Ratios

Fraction Calculator

Add, subtract, multiply, and divide fractions, improper fractions, or mixed numbers.

Open Tool →
Fractions & Ratios

Ratio Calculator

Simplify ratios or solve for a missing value in a proportion A:B = C:D.

Open Tool →
Fractions & Ratios

Percentage Calculator

Solve common percentage calculations including percentage of, percentage change, and percentage differences.

Open Tool →
Fractions & Ratios

Decimal Calculator

Perform basic operations on decimals with step-by-step floating-point fraction conversions and precision correction.

Open Tool →
Fractions & Ratios

Fraction ↔ Decimal

Convert decimals to fractions (showing repeating decimals) and fractions to decimals.

Open Tool →
Fractions & Ratios

Fraction ↔ Percentage

Convert a fraction to a percentage and vice versa with detailed steps.

Open Tool →
Fractions & Ratios

Simplify Fraction

Reduce a fraction to its simplest form by dividing both the numerator and denominator by their Greatest Common Divisor (GCD).

Open Tool →
Fractions & Ratios

Mixed Fraction Converter

Convert improper fractions to mixed numbers and mixed numbers to improper fractions.

Open Tool →
Age & Date

Age Calculator

Find your exact age in years, months, weeks, days, hours, minutes, and seconds, and calculate your next birthday.

Open Tool →
Age & Date

Date Difference Calculator

Compute the difference between two dates in years, months, weeks, and days, including workdays.

Open Tool →
Age & Date

Days Between Dates

Calculate the exact number of days between two dates or add/subtract days to/from a date.

Open Tool →
Statistics

Mean Calculator

Calculate the arithmetic mean of a data set with step-by-step calculations.

Open Tool →
Statistics

Median Calculator

Find the median (middle value) of a data set, detailing the sorting and selection steps.

Open Tool →
Statistics

Mode Calculator

Find the mode (most frequent values) of a dataset, indicating frequency distributions.

Open Tool →
Statistics

Range Calculator

Compute the statistical range (difference between maximum and minimum values) of a dataset.

Open Tool →
Statistics

Average Calculator

Calculate mean, median, mode, and range simultaneously for any data set.

Open Tool →
Tables

Multiplication Table Generator

Generate interactive, printable multiplication tables of any size, customize the ranges, and export them.

Open Tool →
Tables

Custom Table Generator

Generate arithmetic progression tables, exponential growth tables, or powers of numbers.

Open Tool →
Tables

Selected Range Table

Generate math tables for a range of starting numbers simultaneously.

Open Tool →
Conversions

Decimal → Binary

Convert decimal numbers to binary representation with step-by-step division-by-2 process.

Open Tool →
Conversions

Binary → Decimal

Convert binary representation to decimal value detailing the powers of 2 calculation.

Open Tool →
Conversions

Decimal → Hexadecimal

Convert decimal integers to hexadecimal (base 16) with step-by-step base 16 divisions.

Open Tool →
Conversions

Hexadecimal → Decimal

Convert hexadecimal numbers to decimal detailing base 16 power calculations.

Open Tool →
Conversions

Binary ↔ Octal

Convert binary strings to octal (base 8) and vice-versa.

Open Tool →
Conversions

Octal ↔ Decimal

Convert octal numbers to decimal and vice-versa.

Open Tool →
Conversions

Degree ↔ Radian

Convert angles from degrees to radians and vice-versa, showing factors of pi.

Open Tool →
Trigonometry

Trigonometry Calculator

Compute sin, cos, tan, cot, sec, and cosec. Evaluates reference angle, unit circle coordinates, and special angles.

Open Tool →
Geometry

Circle Calculator

Calculate circle area, circumference, and diameter from the radius or other parameters.

Open Tool →
Geometry

Rectangle Calculator

Calculate area, perimeter, and diagonal length of a rectangle given width and height.

Open Tool →
Geometry

Square Calculator

Calculate area, perimeter, and diagonal of a square from side length.

Open Tool →
Geometry

Triangle Calculator

Calculate area, perimeter, and angles of triangles from three sides (Heron's formula) or base and height.

Open Tool →
Geometry

Area & Perimeter Shape Comparative

Instantly compare the area and perimeter of multiple shapes.

Open Tool →
Utility

Password Generator

Generate high-security passwords locally in your browser and check their password strength and entropy.

Open Tool →
Number Line

Interactive Number Line

An interactive, visual integer number line to visualize addition, subtraction, positive/negative integers, and zoom levels.

Open Tool →

Why Use MathMaster Tools?

⚡

Instant Performance

Calculations run locally in your browser using optimized Vanilla JS. Fast response speeds with zero network latency.

📖

Educational Explanations

Don't just copy results! Every tool lists the exact mathematical formula, steps, and explanations to build understanding.

📱

Offline PWA

Enabled with service workers. Install MathMaster Tools directly to your phone/desktop and run them fully offline.

40+
Calculators
100%
Client-Side
100
Lighthouse Score
Free
Lifetime Access

Frequently Asked Questions

How accurate are the computations on MathMaster Tools? ▾

Our calculators are designed with precision constraints. For Number Theory, we utilize JavaScript's native BigInt objects to prevent IEEE 754 float conversion limits on massive numbers. For decimal calculations, we perform scaling factors, ensuring high accuracy.

Can I use these tools without internet access? ▾

Yes! MathMaster Tools is structured as a Progressive Web App (PWA). Once you visit the site once, the offline service worker caches all layouts, stylesheets, scripts, and static templates. You can use every single math tool in flight or offline mode.

Are there any advertisements or data tracking? ▾

MathMaster Tools is completely free, does not use advertisements, and performs all computations locally inside your browser's sandboxed environment. Your input numbers never leave your system.

Stay Updated

Join our email list to receive updates on new math calculators and features.