Scientific Calculator
M: 0How to Use This Scientific Calculator
- 1Enter numbers using the on-screen buttons or your keyboard.
- 2Use +, -, *, /, parentheses, powers, percentages, and decimal values for basic calculations.
- 3Choose DEG or RAD before using trigonometry functions such as sin, cos, and tan.
- 4Use the common scientific buttons first, then open Show More Scientific Functions when needed.
- 5Press = or Enter to calculate the result.
- 6Copy the result, reuse history items, or download your calculation history as a text file.
What Is a Scientific Calculator?
A Scientific Calculator is an advanced calculator used for more than basic addition, subtraction, multiplication, and division. It can help with exponents, square roots, logarithms, trigonometric ratios, percentages, brackets, and scientific notation. This online calculator is designed for quick educational calculations in your browser.
For learning support, you can also use the OpenStax Algebra and Trigonometry resource.
Scientific Calculator vs Basic Calculator
| Feature | Basic Calculator | Scientific Calculator |
|---|---|---|
| Simple arithmetic | Yes | Yes |
| Powers and roots | Limited | Yes |
| Trigonometry | No | Yes, such as sin, cos, and tan |
| Logarithms | No | Yes, including log and ln |
| Scientific notation | Usually limited | Supported through EXP and powers |
| Student use | Useful for simple work | Useful for school, college, and advanced math practice |
| Advanced math support | Limited | Better for formulas, checks, and scientific functions |
Common Scientific Calculator Functions
This Free Scientific Calculator supports basic operations, square root, powers and exponents, percentage, brackets, trigonometry, logarithms, scientific notation, and degree/radian mode. Fraction-style calculations can be typed with division, such as 1/2 + 1/4.
| Button | Meaning | Example |
|---|---|---|
| sin, cos, tan | Trigonometry functions. | sin(90) = 1 in DEG mode |
| asin, acos, atan | Inverse trigonometry functions. | asin(1) = 90 in DEG mode |
| log | Base-10 logarithm. | log(100) = 2 |
| ln | Natural logarithm. | ln(e) = 1 |
| sqrt | Square root. | sqrt(64) = 8 |
| x^2, x^3, x^y | Power calculations. | 2^8 = 256 |
| n! | Factorial for non-negative integers. | 5! = 120 |
| pi, e | Math constants. | pi = 3.14159... |
| % | Percentage value. | 30% * 200 = 60 |
| Ans | Uses your previous answer. | Ans + 5 |
| MC, MR, M+, M- | Memory clear, recall, add, and subtract. | M+ stores current value in memory |
Example Calculations
Basic Order
5 + 3 * 2 = 11
Parentheses
(5 + 3) * 2 = 16
Square Root
sqrt(64) = 8
Power
2^8 = 256
Trigonometry
sin(90) = 1 in DEG mode
Logarithm
log(100) = 2
Natural Log
ln(e) = 1
Factorial
5! = 120
Features
Basic and Scientific Math
Calculate simple arithmetic, powers, roots, logs, percentages, and more.
Trigonometry
Use sin, cos, tan, and inverse trigonometry in DEG or RAD mode.
Keyboard Support
Type numbers, operators, parentheses, decimal points, and Enter for equals.
Calculation History
Save recent calculations in your browser and reuse previous results.
Download History
Download calculation history as a TXT file.
Copy Result
Copy the current result to your clipboard quickly.
Mobile Responsive
Large buttons and compact scientific controls work smoothly on phones.
Browser-Only Privacy
No signup, no external scripts, and no server calculation required.
Scientific Calculator for Students and Advanced Math
This Scientific Calculator can help students check homework, practice formulas, review trigonometry, work with powers and roots, and confirm quick math steps. It is helpful for school, college, exam practice, and everyday advanced calculations, but it should support learning rather than replace it.
Homework Checks
Use it to verify arithmetic, powers, roots, logs, and percentages.
Trigonometry Practice
Switch DEG or RAD mode before using sin, cos, tan, asin, acos, and atan.
Scientific Notation
Use EXP, powers, and precision controls for very large or very small numbers.
Fractions by Division
Enter fraction-style math with division, such as 3/4 + 1/8.
Who Can Use This Free Scientific Calculator?
Students
Check formulas, homework, and quick math practice.
Teachers
Demonstrate calculation steps and scientific functions.
Engineers
Run quick estimates involving roots, powers, and trig functions.
Finance Users
Calculate percentages, powers, and everyday numeric checks.
Freelancers
Handle fast calculations while working in the browser.
Office Workers
Use it as an online calculator for general advanced calculations.
Privacy Note
This calculator runs directly in your browser. Your calculations are not sent to any server. History is saved only in your browser localStorage and can be cleared anytime.