All online calculators

• Power into Torque and vise versa

  This online calculator turns power into torque and vise versa

• Power to the People

  Power units converter.

• Pregnancy due date

  Pregnancy due date Calculator by the first day of the last period

• Pressure over a surface

  This online calculator computes pressure, cause by given mass over given surface in gravity field. Result is displayed using different units of pressure

• Pressure units converter

  Calculator which converts units of pressure

• Price based on running meter

  This online calculator calculates the price of certain area based on price of running or linear meter

• Probability of given number success events in several Bernoulli trials

  Gives probability of k success outcomes in n Bernoulli trials with given success event probability.

• Probability Urn simulator

  This calculator simulates urn or box with colored balls often used for probability problems and can calculate probabilities of different events.

• Progressive tax

  Calculates progressive tax according to tax rate table.

• Projection

  Calculation of unknown parameters of projection using known parameters. Parameters are duration, maximum height, distance, initial velocity and angle.

• Proportion

  This online calculator finds unknown member of proportion. Created by user's request

• Proportionality of body — McCallum's formula
• Prospect distance from the ground and line of sight distance between two observers

  Calculates the prospect distance from height at observer and line of sight distance between two observers.

• Prueba2
• PSAT/NMSQT Practice Tests Score Calculator

  This calculator helps you to score your official practice tests results.

• Pythagorean theorem calculator

  Calculates the side length of a right triangle from two other sides using Pythagorean theorem. Created by user's request

• Quantity of heat

  This calculator can find missing values in the relationship between heat and temperature: heat added or removed, specific heat, mass, initial temperature and final temperature

• Quartic equation solution

  This calculator produces quartic equation solution using resolvent cubic.

• Quick Sum Calculator

  This online calculator sums up entered integer numbers. Any symbol what is not a digit, for example, a space, a comma, a semicolon, etc, serves as a separator. It is useful when you need to sum up several numbers but do not have speadsheet program at hand.

• Racing laps table

  This is generator of lap running order for kart racing. The goal is to let each racer to try each starting position/kart in random order.