The numeral system converter calculator converts numbers from one numeral system to another given the source number and the source numeral system base and target numeral system base. The calculator can handle numeral systems with bases ranging from 2 to 36.

Calculation of derived analytical indicators of time series

Calculator of right circular cone / truncated right circular cone development

This online calculator builds theoretical titration curves for monoprotic acids and bases

This online calculator calculates radix complement (referred to as r's complement) and diminished radix complement (referred to as (r-1)'s complement) for the given number and the given radix (base).

These online calculators calculate the pH of a solution. There are two calculators – one for either strong acid or strong base, and another for either weak acid or weak base.