Free Scientific Calculator
Free client-side scientific calculator with trig, logarithms, square roots, and more.
What does this tool do? A full-featured scientific calculator that handles trigonometry (sin, cos, tan), logarithms, square roots, and standard arithmetic — all running in your browser. Great for students, engineers, or anyone who needs more than basic math.
Runs entirely in your browser
View Technical Specifications (For Developers)
- Expression Parser: Safe evaluation using
Function()constructor with sanitized input — noeval() - Trig Functions: Maps to native
Math.sin(),Math.cos(),Math.tan()with radian conversion - Constants:
Math.PIandMath.Efor precision
Fuel the Project
Free tools, zero server uploads, total privacy.