FREE CALCULATOR
Scientific Calculator
A full scientific calculator for powers, roots, trigonometry, logarithms, constants and everyday arithmetic.
2*(5+3)^2
RESULT
128
DEG
Try: sin(30)+sqrt(25) · Enter = calculate · Esc = clear
CALCULATOR GUIDE
About the Scientific Calculator
Evaluate scientific expressions involving powers, roots, trigonometry and logarithms.
How to use this calculator
- Enter the values requested by the calculator and check their units.
- Choose assumptions that match the scenario you want to estimate.
- Review the result and change one input at a time to compare scenarios.
- Verify important decisions against the relevant agreement, institution or official guidance.
How the calculation works
The calculator applies standard arithmetic precedence and supported function rules; some inputs are outside a function's real-number domain.
Example
sin(30°) equals 0.5 in degree mode; interpreting 30 as radians gives a different result.
Things to keep in mind
- Use parentheses to make order of operations clear and check degree versus radian mode.
- Check division by zero and invalid logarithm or square-root inputs; independently verify critical work.
- The result is an estimate based on the inputs and assumptions provided.
- Check applicable terms and official guidance before making financial, employment or academic decisions.
Frequently asked questions
Why is a logarithm input invalid?
For real-number logarithms, the input must be greater than zero.
Are results guaranteed or official?
No. The tool provides an estimate or arithmetic result and may not include every real-world rule, fee or policy.
Can I compare scenarios?
Yes. Change one input at a time to see how it affects the result.