Basic Calculator
Add, subtract, multiply, divide with keyboard support and calculation history.
📐 Basic & Advanced Math Calculators
Essential math tools for everyday calculations — from simple arithmetic to advanced number theory.
Scientific Calculator
Advanced: sin, cos, log, factorial, powers, and all scientific functions.
Percentage Calculator
Find percent of a number, percent change, increase/decrease by percent.
Fraction Calculator
Add, subtract, multiply, divide fractions with step-by-step simplification.
Decimal to Fraction
Convert any decimal number to a simplified fraction instantly.
Square Root Calculator
Find the square root of any number with full decimal precision.
Cube Root Calculator
Calculate cube roots of positive and negative numbers precisely.
Power Calculator
Raise any base to any exponent — positive, negative, or fractional.
Exponent Calculator
Solve xⁿ for any base and exponent value with detailed output.
Logarithm Calculator
log₁₀, ln, log₂, or any custom base logarithm calculation.
Factorial Calculator
Compute n! for any integer with full expansion for small values.
Prime Number Checker
Instantly check if any number is prime or composite with factors listed.
GCD / HCF Calculator
Find Greatest Common Divisor of multiple numbers using Euclidean algorithm.
LCM Calculator
Find Least Common Multiple of two or more numbers instantly.
Rounding Calculator
Round to nearest integer, decimal places, or nearest 10/100/1000.
Random Number Generator
Generate single or multiple random numbers in any range.
Number to Words
Convert any number to English words — great for cheques and documents.
Roman Numeral Converter
Convert numbers to Roman numerals and vice versa with reference chart.
📊 Statistics Calculators
Statistical analysis tools for data science, research, academics, and everyday data interpretation.
Average Calculator
Arithmetic mean with count, sum, min, and max — comma-separated input.
Mean Calculator
Arithmetic, geometric, and harmonic mean — all three in one tool.
Median Calculator
Find the middle value with sorted data display and position info.
Mode Calculator
Find the most frequent value(s) — handles unimodal and bimodal data.
Standard Deviation
Population and sample standard deviation with full statistical breakdown.
Variance Calculator
Population and sample variance with step-by-step explanation.
Probability Calculator
Single event probability plus P(A and B) and P(A or B) calculations.
Permutation Calculator
P(n,r) — count ordered arrangements from n items choosing r.
Combination Calculator
C(n,r) — count unordered selections. Handles large numbers with BigInt.
Ratio Calculator
Simplify ratios and divide quantities in any ratio — e.g. 3:2.
Proportion Calculator
Solve A/B = C/D for the unknown value using cross-multiplication.
🔢 Algebra Calculators
Equation solvers and algebraic tools for students and professionals working with variables and systems.
Quadratic Equation Solver
Solve ax²+bx+c=0. Shows discriminant, both roots, and step-by-step work.
Linear Equation Solver
Solve ax+b=0 and 2×2 systems of linear equations using Cramer's Rule.
Polynomial Calculator
Evaluate any polynomial expression at a given value of x.
Matrix Calculator
Add, subtract, multiply matrices, find determinant and transpose (2×2, 3×3).
∠ Trigonometry Calculators
Trigonometric functions, angle converters, and triangle tools for math, engineering, and physics.
Sin Cos Tan Calculator
Calculate sine, cosine, tangent in degrees or radians with visual output.
Trigonometry Calculator
All 6 trig functions (sin, cos, tan, cot, sec, csc) for any angle.
Angle Calculator
Convert degrees/radians, find missing triangle angles, complementary/supplementary.
📏 Geometry Calculators
Area, perimeter, volume, and coordinate geometry tools for all common 2D and 3D shapes.
Area of Circle
Area, circumference, and diameter — input radius, diameter, or circumference.
Area of Rectangle
Area, perimeter, and diagonal for any rectangle dimensions.
Area of Triangle
Three methods: base/height, Heron's formula (3 sides), or SAS.
Area of Square
Area, perimeter, and diagonal from side length.
Circumference Calculator
Find circle circumference from radius, diameter, or area.
Perimeter Calculator
Square, rectangle, triangle, circle, trapezoid perimeter — one tool.
Volume of Cube
Volume, surface area, face diagonal and space diagonal of a cube.
Volume of Sphere
Volume and surface area of a sphere from radius or diameter.
Volume of Cylinder
Volume, lateral and total surface area of a cylinder.
Volume of Cone
Volume, slant height, lateral and total surface area of a cone.
Pythagorean Theorem
Find any side of a right triangle using a²+b²=c².
Distance Calculator
Distance between two coordinate points using the distance formula.
Slope Calculator
Calculate slope (m), line equation y=mx+b, and angle of inclination.
Midpoint Calculator
Find the exact midpoint (x,y) between any two coordinate points.
Angle Calculator
Angle conversion, missing triangle angle, complementary/supplementary.
Why Use CalcWise Pro?
⚡ Instant Results
All calculations happen instantly in your browser — no waiting, no loading.
All calculations happen instantly in your browser — no waiting, no loading.
📚 Learn as You Calculate
Every tool shows the formula, steps, and an educational explanation.
Every tool shows the formula, steps, and an educational explanation.
📱 Works Everywhere
Fully responsive on any phone, tablet, or desktop — no app needed.
Fully responsive on any phone, tablet, or desktop — no app needed.
🔒 100% Private
Your calculations never leave your browser. Zero data collection.
Your calculations never leave your browser. Zero data collection.
🆓 Completely Free
No registration, no premium tiers, no credit card. Always free.
No registration, no premium tiers, no credit card. Always free.
🎯 Verified Accuracy
Every formula is verified against academic standards and tested rigorously.
Every formula is verified against academic standards and tested rigorously.