Daniel Oh
Featured contributor MSc Applied Statistics; 7 years in analytics and data tooling.

Daniel Oh

Senior Contributor, Math & Statistics

0 calculators 0 articles Member since Jun 2026
Math / Percentage

Number Base Converter

Convert a number written in any base from 2 to 36 into any other base from 2 to 36, with companion outputs in binary, oc...

basic
9,788 3.8 1 min
Other / Tech

Base64 Converter

Encode any UTF-8 text to Base64 or decode a Base64 string back to text. The mode is auto-detected from the input but can...

basic
716 4.3 1 min
tutorial Math

Percentages Without the Headache

Every "X% of Y" problem, every "what percent of", every percent-change question — written out the way you'd actually say them.

Daniel Oh Daniel Oh
3 min

Reviewed by Daniel Oh

These calculators were technically reviewed by Daniel Oh for accuracy.