Calculators

Calculates the energy equivalent of mass (or vice-versa) using Einstein's famous equation.

This calculator finds the next palindrome date after a given date. A palindrome date is a date that reads the same backward as forward (e.g., 02/02/2020).

Combines calculations for both work done and the rate at which it is done (power).

Calculates the transpose of a matrix by swapping its rows and columns.

Estimates the possible date(s) of conception based on the last menstrual period or due date.

Calculates the pKa value of a solution using either the Henderson-Hasselbalch equation or the acid dissociation constant (Ka).

Calculates the dot product (scalar product) of two vectors. The dot product of two vectors is a single number that represents the cosine of the angle between them, scaled by the product of their magnitudes.

Calculates the listening time of an audiobook based on its length and playback speed.

Calculates the ratio of useful output energy or power to the total input energy or power, often as a percentage.

Converts a fraction into its equivalent decimal representation.