Kalkulator obwodu
Use the free online Kalkulator obwodu tool. Fast, private and easy to use — runs entirely in your browser. Part of our Kalkulatory matematyczne collection.
Kalkulator pola koła
Find the area, circumference and diameter of a circle from its radius using A = πr².
Kalkulator twierdzenia Pitagorasa
Solve any missing side of a right triangle with a² + b² = c². Enter two sides and get the third.
Kalkulator równania kwadratowego
Solve ax² + bx + c = 0 with the quadratic formula, including the discriminant and complex roots.
Upraszczanie ułamków
Reduce any fraction to lowest terms, see it as a mixed number and as a decimal.
Kalkulator NWD i NWW
Find the greatest common factor and least common multiple of two whole numbers instantly.
Kalkulator zmiany procentowej
Work out the percentage increase or decrease between two values, plus the absolute difference.
Kalkulator nachylenia
Get the slope, line equation and distance between two points on a graph.
Kalkulator obwodu
Find the circumference and area of a circle from its radius or diameter with C = πd.
Kalkulator potęg
Raise any number to any power, including negative and fractional exponents.
Kalkulator logarytmów
Compute the logarithm of any number in any base, with natural log and log base 10 included.
Kalkulator silni
Calculate n! exactly for small numbers and in scientific notation up to 170!.
Upraszczanie proporcji
Simplify any ratio to lowest terms and see its 1 : n form — decimals supported.