Education & Science

Calculate speed, distance, or time from any two known values — supports km/h, mph, m/s with unit conversion.

Calculate density, mass, or volume from any two known values — supports g/cm³, kg/m³, lb/ft³ with material presets.

Calculate single event, multiple event, and conditional probabilities — with complement, union, and intersection formulas.

Calculate mean, variance, and standard deviation for any dataset — supports both population (σ) and sample (s) formulas.

Count words, characters, sentences, paragraphs, and estimate reading time — instant text analysis.

Calculate what grade you need on your final exam to reach your target course grade.