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

Average Calculator

Compute the arithmetic mean (average), median, mode, range, geometric mean, and harmonic mean of a list of numbers.

basic
11,910 3.9 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
6,489 4.8 1 min
Math / Geometry

Trapezoid Area Calculator

Calculate the area of a trapezoid given the lengths of its two parallel bases and the perpendicular height between them.

basic
3,114 4.5 1 min
Math / Percentage

Prime Factorization Calculator

Factor any positive integer into its prime components and list every divisor and the count of distinct prime factors.

basic
23,376 4.4 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