Mathematics Calculators
The Calnora Mathematics hub brings together 32 precision calculation engines covering arithmetic, algebra, trigonometry, matrix operations, vectors, and planar geometry. Every tool calculates instantly in your browser without lag or telemetry, providing full formulas, step-by-step mathematical procedures, and exportable result sets for students, engineers, and researchers.
Available calculators in Mathematics (32)
Percentage Calculator
Calculate percentage change, percentage of values, and increase/decrease discounts instantly.
Scientific Calculator
Advanced mathematical calculations with trigonometry, powers, roots, and logarithms.
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step simplification.
Quadratic Equation Solver
Solve ax² + bx + c = 0 with real/complex roots, discriminant, and vertex coordinates.
Matrix Calculator
Calculate determinants, inverses, transpose, addition, and multiplication of 2x2 and 3x3 matrices.
Unit Converter
Convert length, mass, temperature, speed, area, and volume across metric and imperial units.
GCD & LCM Calculator
Find the Greatest Common Divisor and Least Common Multiple of two or more numbers.
Prime Number & Factorization
Check prime numbers and generate complete prime factor decomposition trees.
Triangle Calculator
Find triangle area (Heron), perimeter, and all three angles from three side lengths.
Pythagorean Theorem
Solve for any side of a right triangle using a² + b² = c².
Area Calculator
Compute area of rectangles, circles, triangles, trapezoids, and ellipses.
Volume Calculator
Volume of boxes, cubes, spheres, cylinders, and cones.
Average & Mean Calculator
Arithmetic mean, median, sum, and range from a pasted list of numbers.
Ratio & Proportion
Solve a:b = c:x and simplify ratios with cross-multiplication.
Binary, Hex & Base Converter
Convert integers between binary, octal, decimal, and hexadecimal.
Slope & Line Equation
Slope, intercept, distance, and midpoint from two points on a line.
Decimal to Fraction
Convert repeating and terminating decimals to simplified and mixed fractions.
Scientific Notation
Convert numbers to scientific standard form and engineering E-notation.
Significant Figures
Count significant digits and round numbers to given sig figs with trailing zeroes.
Logarithm Calculator
Compute log with arbitrary base, natural log ln(x), and log10.
Percent Error
Calculate percentage error between experimental and true reference values.
Circle Calculator
Find radius, diameter, circumference, area, arc length, and sector area.
Surface Area Calculator
Calculate surface area for sphere, cylinder, cone, cube, and rectangular prism.
Nth Root Calculator
Calculate square root, cube root, and general nth root of real numbers.
Exponent Calculator
Raise numbers to integer, fractional, or negative exponents.
Rounding Calculator
Round numbers to decimal places, nearest tenth, whole, hundred, or thousand.
Sequence & Series
Arithmetic and geometric sequence terms, common difference/ratio, and sum.
2x2 Linear System Solver
Solve systems of two equations with two variables using Cramer's rule.
Cubic Equation Solver
Find all three real and complex roots of cubic equations ax³ + bx² + cx + d = 0.
Complex Number Calculator
Arithmetic, magnitude, argument, polar form, and conjugate of complex numbers.
2D & 3D Vector Calculator
Vector magnitude, addition, dot product, cross product, and angle between vectors.
Modulo & Remainder
Compute quotient, integer remainder, and mathematical modulo a mod b.
Frequently Asked Questions — Mathematics
Are Calnora mathematics tools free to use?
Yes, all 32 math calculators on Calnora are completely free with no registration, subscription, or usage limits.
How accurate are the scientific and algebraic solvers?
Calculations are performed with 64-bit floating-point precision directly within your browser, adhering to IEEE 754 arithmetic standards with robust handling of edge cases.
Can I export or copy calculation steps?
Yes, every tool provides one-click copy functionality to quickly grab formulas, results, and breakdown steps for homework, reports, or research notes.