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
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Dog Years Calculator

Estimate the human-equivalent age of a dog using a size-aware formula that accounts for breed weight class.

basic
22,308 4.4 1 min
Math / Percentage

Fibonacci Calculator

Compute the n-th Fibonacci number F(n), its neighbors F(n−1) and F(n+1), and the running sum of the first n terms.

basic
10,567 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