Scientific Calculator: Functions You Should Know

A scientific calculator does far more than add and subtract. Here are the functions students and professionals use most.

Key functions

• Trigonometry — sin, cos, tan (usually in radians online).
• Logarithms — log (base 10) and ln (natural log).
• Powers & roots — x^y and √.
• Constants — π and e.

A tip on radians vs degrees

Many online calculators use radians for trig by default. If you expect degrees, convert first (degrees × π ÷ 180).

Free math tools

Try our Scientific Calculator for trig, logs, powers and roots. Working with fractions? Use the Fraction Calculator, and check numbers with the Prime Number Checker.