Free Math Calculators
Scientific, fraction, statistics, geometry, and more — all free, instant, and accurate.
Basic Math
Scientific Calculator
Full-featured scientific calculator with trig, log, and more
Fraction Calculator
Add, subtract, multiply, and divide fractions
Percentage Calculator
Calculate percentages, increases, and decreases
Random Number Generator
Generate random numbers in any range
Percent Error Calculator
Calculate percent error between experimental and theoretical values
Exponent Calculator
Calculate base raised to any power
Binary Calculator
Binary arithmetic and decimal/binary conversion
Hex Calculator
Hexadecimal arithmetic and conversions
Half-Life Calculator
Calculate radioactive decay and half-life
Quadratic Formula Calculator
Solve quadratic equations ax² + bx + c = 0
Log Calculator
Calculate logarithms with any base
Ratio Calculator
Simplify and solve ratios and proportions
Root Calculator
Calculate square, cube, or nth root
Least Common Multiple Calculator
Find LCM of two numbers
Greatest Common Factor Calculator
Find GCF/GCD of two numbers
Factor Calculator
Find all factors and prime factorization
Rounding Calculator
Round numbers to any decimal place
Matrix Calculator
Matrix addition, multiplication, determinant, and inverse
Scientific Notation Calculator
Convert numbers to and from scientific notation
Big Number Calculator
Arithmetic with very large numbers
Statistics
Standard Deviation Calculator
Calculate mean, variance, and standard deviation
Number Sequence Calculator
Identify and extend arithmetic and geometric sequences
Sample Size Calculator
Determine required sample size for surveys
Probability Calculator
Calculate probability of events
Statistics Calculator
Comprehensive descriptive statistics
Mean, Median, Mode, Range Calculator
Calculate all central tendency measures
Permutation and Combination Calculator
Calculate nPr and nCr
Z-score Calculator
Calculate z-scores and standard normal probabilities
Confidence Interval Calculator
Calculate confidence intervals for population mean
Geometry
Triangle Calculator
Solve triangles — sides, angles, area, perimeter
Volume Calculator
Calculate volume of 3D shapes
Slope Calculator
Calculate slope, distance, and midpoint
Area Calculator
Calculate area of common shapes
Distance Calculator
Calculate distance between two points
Circle Calculator
Calculate area, circumference, diameter, and radius
Surface Area Calculator
Calculate surface area of 3D shapes
Pythagorean Theorem Calculator
Solve right triangles using a² + b² = c²
Right Triangle Calculator
Solve right triangles with angles and sides
How to use this math hub
This section brings together the calculators most people use for daily math, study support, and technical work. Start with the category that matches your problem, then use the calculator to verify the answer, compare values, or solve a more complex formula in seconds.
Basic math
Useful for arithmetic, conversions, factorization, and everyday computations.
Statistics
Helpful for analyzing datasets, estimating confidence intervals, and understanding spread.
Geometry
Ideal for areas, volumes, coordinate distances, right triangles, and 3D solids.
Frequently Asked Questions
Are all Anglesuite math calculators free to use?
Yes, every calculator on Anglesuite is completely free with no registration or download required.
How accurate are the online calculations?
Our calculators use high-precision numerical algorithms and arbitrary precision BigInt math where appropriate to ensure exact results.
Can I use these calculators on mobile devices?
Yes, all our calculators are built with responsive web design and work seamlessly on mobile phones, tablets, and desktop computers.