Math, science, and GPA calculators for students.

Students need reliable math and science tools that work instantly without creating accounts. SpecWhale covers everything from GPA calculation to geometry, statistics, and unit conversions — all explained clearly with worked examples so you understand the math, not just the answer.

Featured Tools for Students & Academics

Zero-upload, 100% private client-side calculators and converters.

GPA Calculator

Calculate weighted GPA from three courses.

Education & Math · Calculator

Percentage Calculator

Calculate what percent one number is of another, or find what value a percentage represents.

Business & Shopping · Calculator

Average Calculator

Calculate average from a list of numbers.

Education & Math · Calculator

Pythagorean Theorem Calculator

Calculate hypotenuse from two right-triangle legs.

Education & Math · Calculator

Ratio Calculator

Scale a ratio up or down while keeping the same proportion between its parts.

Education & Math · Calculator

Word Counter

Count words, characters, sentences, and estimated reading time.

Developer Tools · Text/code