Scientific Calculator Evaluate common scientific math expressions. Half-Life Calculator Calculate remaining amount after radioactive or exponential decay. Root Calculator Calculate square, cube, or nth roots. Scientific Notation Calculator Convert numbers to scientific notation. Exponent Calculator Calculate powers and exponential values. Log Calculator Calculate logarithms with custom base.

Percentage Calculator Calculate percent of a number and percent change. Percent Error Calculator Calculate percent error from experimental and accepted values. Ratio Calculator Simplify and scale a ratio. Rounding Calculator Round a number to selected decimal places. Basic Calculator Perform basic arithmetic operations. Fraction Calculator Add, subtract, multiply, or divide fractions. Long Division Calculator Calculate quotient and remainder.

Volume Calculator Calculate volume for common 3D shapes. Area Calculator Calculate area for common 2D shapes. Circle Calculator Calculate circle area, circumference, and diameter. Pythagorean Theorem Calculator Find hypotenuse or missing right-triangle leg. Triangle Calculator Calculate triangle area and perimeter from side lengths. Distance Calculator Calculate distance between two coordinate points. Surface Area Calculator Calculate surface area for common 3D shapes. Right Triangle Calculator Calculate right triangle sides and angles.

Random Number Generator Generate a random number within a range. Binary Calculator Perform binary arithmetic and decimal conversion. Greatest Common Factor Calculator Find the greatest common factor of two integers. Prime Factorization Calculator Find prime factors of an integer. Hex Calculator Convert hex to decimal and binary. Least Common Multiple Calculator Find the least common multiple of two integers. Factor Calculator List all positive factors of an integer. Big Number Calculator Perform arithmetic on very large integer values. Common Factor Calculator List common factors of two integers.

Slope Calculator Find slope and line equation from two points. Number Sequence Calculator Generate arithmetic or geometric sequences. Quadratic Formula Calculator Solve quadratic equations using the quadratic formula. Matrix Calculator Calculate determinant and inverse for a 2x2 matrix.

Probability Calculator Calculate probability, complement, and odds. Mean, Median, Mode, Range Calculator Find mean, median, mode, and range from a list. Z-score Calculator Calculate z-score from value, mean, and standard deviation. Average Calculator Calculate average from a list of values. Standard Deviation Calculator Calculate sample and population standard deviation. Sample Size Calculator Estimate sample size for a population proportion. Statistics Calculator Calculate common descriptive statistics from a list. Permutation and Combination Calculator Calculate permutations and combinations. Confidence Interval Calculator Calculate confidence interval from mean, standard deviation, and sample size. P-value Calculator Estimate two-tailed p-value from a z-score.