Big Number Calculator

An online 100, 500, 1000, and 5000 digit precision base calculator written in JavaScript using BigInt.js. This long number base calculator supports lots of decimal digits. It can estimate the nth root of a large number in any number base up to base 2047. (Base 2 to 93 use the standard ASCII charset. Base 94 to 2047 of course uses the utf-8 charset.) Big Number Calculator calculates arbitrarily-long decimal numbers by representing them internally as big fractions. We may have invented a better root estimation algorithm, but it's not obvious. Estimating long decimal roots in big number bases still takes a long time in JavaScript!

This project was inspired by our other project, the 1,000,000 digit calculator which is written in PHP. Check out our other page of calculators.