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
Food / Drinks

Cocktail Dilution Calculator

Estimate the final ABV of a stirred or shaken cocktail given starting ABV, total liquid volume, and the typical 25–40% d...

basic
14,824 3.9 1 min
Math / Geometry

Annulus (Ring) Area Calculator

Compute the area of an annulus (the region between two concentric circles) from the outer and inner radii: A = π · (R² −...

basic
21,421 4.8 1 min
Physics / Mechanics

Free Fall Calculator

Compute how long an object takes to fall from a given height and the velocity it reaches just before impact, ignoring ai...

basic
17,866 4.4 1 min
Food / Cooking

Cooking Conversion Calculator

Estimate cooking time for a roast based on its weight and the recommended minutes-per-pound for the meat type and donene...

basic
16,308 5.0 1 min
Physics / Electricity

Current Divider Calculator

Compute the current through one branch of a two-resistor parallel current divider from the total source current.

basic
10,087 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