Find here a wide selection of free online calculators covering most of the basic calculation needs in various areas of life, as well as helping you solve more complex math and science problems. Many of the calculators are universal multi-functional (all-in-one) calculators. All of the calculators are written in javascript, so to use this site please make sure that javascript is enabled in your browser. To help you personalize your online experience we may use cookies. The cookies may be also used to serve third party advertisements.
Most Popular Calculators
Stoichiometry Calculator – finds the stoichiometric coefficients to balance a given chemical equation and computes amounts of the reactants and products of the reaction.
Number Sorter – Performs fast number sorting in ascending or descending order using one of the fastest sorting algorithms.
Exponential Decay Calculator – evaluates the continuous exponential decay function. It can also be used as Exponential Growth Calculator and even Half-Life Calculator.
Prostate Volume Calculator – evaluates the man’s prostate volume from given prostate gland dimensions.
BMI Calculator for Children is a BMI percentile calculator for children and teenagers that provides BMI and the corresponding BMI-for-age percentile. Based on the CDC growth charts.
Convolution Calculator – performs discrete convolution combining two data sequences into a single data sequence.
Frequency Distribution Calculator – computes the number of times a data value occurs in a given data set. The frequencies are presented in the form of absolute, relative or cumulative frequency.
Empirical Formula Calculator – finds an empirical formula corresponding to the given compound chemical composition.