Math’s

Use the Odds Of Winning Calculator to convert winning outcomes into win probability, odds for and against, a one-in figure, and repeat odds.

Least To Greatest Fractions Calculator: order fractions, mixed numbers and decimals from least to greatest with common denominator steps.

Chances Calculator: convert any chance between probability percent, odds for and against, a fraction and 1 in X, with clear examples.

Exponential Decay Formula Calculator: solve N(t)=N0 e^-kt for remaining amount, half life, decay constant or elapsed time.

Use the Significance Calculator to run two-sample tests, find p-values and check whether your result is statistically significant with ease.

Missing Leg Calculator: solve a right triangle with the Pythagorean theorem or angle-based trig and get both legs instantly.

Decay Rate Calculator: find remaining quantity, decay constant, half-lives and percent decayed from initial amount, half-life, time.

Leg Calculator finds the missing leg, hypotenuse and acute angles of a right triangle quickly, with clear worked steps for class.

Trapezoidal Rule Calculator: approximate any definite integral fast, compare against the exact value, and watch the error shrink as n grows.

Truth Table Calculator: generate complete A/B truth tables for AND, OR, XOR, NAND, NOR, implication, and equivalence instantly.