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

GCD and LCM Calculator

Compute the greatest common divisor (GCD) and the least common multiple (LCM) of two positive integers using the Euclide...

basic
8,602 4.1 1 min
Math / Percentage

Nth Root Calculator

Find the nth root of any positive number — square roots, cube roots, and any custom n you choose.

basic
6,235 3.9 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
14,865 4.5 1 min
Math / Percentage

Factorial Calculator

Compute the factorial n! = 1 · 2 · 3 · ... · n for any non-negative integer up to 170 (the largest n that fits in a doub...

basic
2,148 4.4 1 min
Statistics / Probability

Lottery Odds Calculator

Compute the odds of winning a "pick k from n" lottery (e.g. 6/49) — the probability of matching all k drawn numbers, exp...

basic
1,628 4.3 1 min
Food / Baking

Pizza Dough Calculator

Compute the total flour, water, salt, and yeast needed for a target number of pizzas and dough-ball weight, using your c...

basic
16,035 4.8 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.