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 / Fractions

Fraction Calculator

Add, subtract, multiply, and divide fractions — with automatic simplification.

basic
20,434 5.0 1 min
Math / Percentage

Weighted Grade Calculator

Compute a course grade as a weighted average of up to four components (e.g. homework, quizzes, midterm, final), given ea...

basic
20,850 4.5 1 min
Physics / Electricity

Voltage Divider Calculator

Compute the output voltage of a two-resistor voltage divider from the input voltage and the two resistor values.

basic
11,230 3.9 1 min
Physics / Mechanics

Projectile Range Calculator

Compute the horizontal range, time of flight, and maximum height of a projectile launched from level ground at speed v₀...

basic
21,312 4.3 1 min
Other / Tech

Download Time Calculator

Estimate how long a download will take given a file size in MB or GB and an internet connection speed in Mbps.

basic
10,889 4.0 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