All online calculators

• Solution of a system of 3 linear equations

  Solution of a system of 3 linear equations with 3 variables

• Solution of buckets and tank problem

  This online calculator find a solution to the question how to fill tank with certain amount of water using two buckets of different size

• Solution of nonhomogeneous system of linear equations using matrix inverse

  Solution of nonhomogeneous system of linear equations using matrix inverse

• Solution of quadratic equation

  Solution of quadratic equation, including complex roots

• Solving a system of equations of first degree with two unknowns

  This calculator solves a system of equations of first degree with two unknowns.

• Solving limit problems using L'Hospital's Rule

  Solving 0/0 and ∞/∞ limit problems using L'Hospital's Rule.

• Sound Speed in Gases

  This online calculator computes speed of sound in an ideal gas.

• Space object velocity

  It calculates the circular orbital velocity, escape velocity and planetary system escape velocity for the given planet parameters.

• Spearman's correlation coefficient

  Calculates Spearman's rank correlation coefficient

• Sphere
• Spherical cap and spherical segment

  This calculator computes volume and surface area of spherical cap and spherical segment

• Spherical sector

  Calculates surface area and volume of Spherical sector by radius and height

• Square Door Tank Volume

  Use this calculator to determine tank volume if you've modified the tank for square doors.

• Square Stack Calculator

  Due to friction loss when using a rectangular stack, this will calculate the equivalent size of a round stack with the same airflow.

• Squarefree polynomial factorization

  The calculator extracts square factors from the input polynomial.

• Standard Galactic Alphabet decoder

  This online calculator can decode message written with standard galactic alphabet symbols

• Strength of alcoholic cocktail

  Calculates volume fraction of alcohol in a beverage made of 3 other beverages.

• Student t-distribution

  Calculates cumulative distribution function value and probability density function value for Student t-distribution. Quantile calculator evaluates Student quantiles for given probability and specified number of degrees of freedom.

• Substitution cipher breaker

  This online calculator tries to decode substitution cipher without knowing the key. It uses genetic algorithm over text fitness function to break the encoded text

• Substitution Cipher Tool

  The tool to encrypt/decrypt messages with simple substitution cipher given as key. It is also useful for manual cryptanalysis of substitution cipher - when you have message written in English alphabet partially decrypted with automatic tool and want to tweak the key.