Tools
Break a whole number down into its prime factors, directly in your browser.
Calculate the hypotenuse of a right triangle from its two legs, directly in your browser.
Solve a quadratic equation (ax² + bx + c = 0) for x, directly in your browser.
Solve a proportion (A:B = C:D) for the missing value, directly in your browser.
Calculate the nth root of a number, directly in your browser.
Round a number to a chosen number of decimal places, directly in your browser.
Convert a number into scientific notation, directly in your browser.
Calculate the slope and line equation between two points, directly in your browser.
Calculate the tip amount, total bill, and split per person, directly in your browser.
Free online percentage calculator. Instantly find what X% of a number is, calculated locally in your browser.