Arithmetic
Percentage Calculator
Find percentage from value and total for marks, growth, discounts, and comparisons.
All math calculators
53 tools for fast checks and clean answers
Geometry
Area Calculator
Calculate area of a rectangle using length and width.
Geometry
Volume Calculator
Calculate volume of a cuboid using length, width, and height.
Arithmetic
Average Calculator
Compute average from total sum and count of values.
Arithmetic
Ratio Calculator
Calculate and compare ratio values from two numbers.
Fractions
Fraction Calculator
Convert fraction to decimal using numerator and denominator.
Algebra
Square Root Calculator
Find square root of a number instantly.
Math
Algebra Calculator
Solve a basic linear algebra equation of form ax + b = c.
Geometry
Perimeter Calculator
Calculate perimeter of a rectangle from length and width.
Math
Distance Calculator
Calculate distance using speed and time values.
Arithmetic
Percentage Increase Calculator
Calculate percentage increase from old and new values.
Arithmetic
Percentage Decrease Calculator
Calculate percentage decrease between two values.
Algebra
LCM Calculator
Find least common multiple of two numbers.
Algebra
HCF Calculator
Find highest common factor of two numbers.
Quadratic
Quadratic Equation Calculator
Solve quadratic equations using coefficients a, b, and c.
Math
Linear Equation Calculator
Solve linear equation of form ax + b = c.
Math
Exponent Calculator
Calculate powers with base and exponent.
Algebra
Logarithm Calculator
Calculate logarithm value using number and base.
Probability
Permutation Calculator
Calculate number of permutations for n and r.
Probability
Combination Calculator
Calculate number of combinations for n and r.
Statistics
Standard Deviation Calculator
Estimate standard deviation from variance inputs.
Arithmetic
Median Calculator
Estimate median from two middle values for even datasets.
Arithmetic
Mode Calculator
Check mode candidate using highest frequency count.
Probability
Probability Calculator
Calculate event probability from favorable and total outcomes.
Math
Trigonometry Calculator
Calculate sine ratio from opposite and hypotenuse.
Scientific
Scientific Calculator
Free scientific calculator online with sin, cos, tan, log, ln, powers, memory, history, and keyboard shortcuts.
Graphing
Graph Calculator
Free graph calculator online: plot y = f(x), zoom and pan, multiple equations, plus a 3D z = f(x, y) surface.
Math
Random Number Generator
Generate random numbers between a minimum and maximum range.
Math
Percent Error Calculator
Calculate percent error between experimental and theoretical values.
Math
Binary Calculator
Perform binary-based arithmetic calculations.
Math
Hex Calculator
Calculate hexadecimal-style operations from numeric input.
Quadratic
Quadratic Formula Calculator
Solve quadratic equations using the quadratic formula.
Algebra
Log Calculator
Calculate logarithm using value and base.
Math
Root Calculator
Find nth root using value and root degree.
Math
GCF Calculator
Find greatest common factor of two numbers.
Algebra
Factor Calculator
Estimate factors for an integer value.
Math
Rounding Calculator
Round numbers to selected decimal places.
Math
Matrix Calculator
Perform matrix operation placeholders for quick setup.
Math
Scientific Notation Calculator
Convert between scientific notation and decimal.
Math
Big Number Calculator
Calculate large numbers with operation-based input.
Math
Number Sequence Calculator
Calculate nth term of arithmetic sequence.
Math
Sample Size Calculator
Estimate sample size for surveys and studies.
Statistics
Statistics Calculator
Calculate basic statistics from summary values.
Arithmetic
Mean Median Mode Range Calculator
Get key descriptive statistics from summary inputs.
Probability
Permutation Combination Calculator
Calculate permutation and combination counts.
Statistics
Z Score Calculator
Calculate z-score from value, mean, and standard deviation.
Statistics
Confidence Interval Calculator
Estimate confidence interval from sample statistics.
Geometry
Triangle Calculator
Calculate triangle area using base and height.
Math
Slope Calculator
Calculate slope between two coordinate points.
Geometry
Circle Calculator
Calculate circle area and circumference from radius.
Geometry
Surface Area Calculator
Calculate cuboid surface area.
Math
Pythagorean Theorem Calculator
Calculate hypotenuse from right triangle sides.
Geometry
Right Triangle Calculator
Calculate right triangle area from base and height.