Scientific Calculator — Trig, Logs & Powers
Full-featured scientific calculator with trigonometry and logs
How to Use Scientific Calculator
Full-featured scientific calculator with trigonometry and logs No signup, and nothing gets uploaded for most use.
- 1
Enter your numbers in the input fields.
- 2
Choose the calculation options or frequency.
- 3
The result updates instantly as you type.
- 4
Review the breakdown, chart, or schedule, and copy the answer.
Why you might like it
- Nothing to upload — the work happens on your device.
- Free with no signup, no watermarks, and no daily limits.
- Works in any modern browser on any device — nothing to install.
- Usually done in a few seconds, so it doesn't get in your way.
Frequently Asked Questions
What order of operations is used?▾
Parentheses are evaluated first, then exponents (^), then multiplication, division and modulo, and finally addition and subtraction. Function calls bind to their argument inside parentheses.
Which functions and constants are supported?▾
The calculator supports sin, cos, tan, asin, acos, atan, log (base 10), ln, log10, sqrt, abs, floor, ceil and round, plus the constants pi and e. You can also enter multiple lines, one expression per line.
Related Tools
Percentage Calculator
Calculate percentages, percent change and ratios
Quadratic Equation Solver
Solve quadratic equations with roots and parabola
Cube Root Calculator
Calculate cube roots of any number
Determinant Calculator
Compute determinants and inverses of small matrices
Factorial Calculator
Calculate n! with trailing zeros and digit count
Fraction Calculator
Add, subtract, multiply and divide fractions
GCD Calculator
Find the greatest common divisor with full steps
LCM Calculator
Find the least common multiple of two numbers
Learn more
Percentage: The Complete Guide for 2026
Learn how the Percentage Calculator works, what percent of, what percent, and percent change calculate, and when to use each.
How to Use Percentage: A Step-by-Step Guide
Step-by-step guide to using the Percentage Calculator — choose the calculation type, enter your values, and get the result instantly.
Percentage: Formats, File Types, and Size Limits
An overview of the Percentage Calculator's modes and inputs — the three calculation types and the values each one needs.