Scientific Calculator
Evaluate scientific expressions with degree or radian angles.
Is there a free online scientific calculator?
A scientific calculator evaluates an expression with powers, roots, logarithms and trigonometry using the standard order of operations.
Formula: Supports +, −, ×, ÷, powers (^), parentheses, sqrt, log, log10, sin, cos, tan, inverse trig, pi, e, and factorial (!).
What this calculator does
Calculate powers, roots, logarithms, trigonometry, constants, factorials, and grouped expressions with finite real-number validation.
Use it to turn Expression, Angle mode into a checked result you can compare, copy, or rerun with different assumptions.
The page shows the formula, a numeric worked example, and the assumptions that affect this math calculation.
Inputs and what they mean
- Expression
- — text value.
- Angle mode
- — choice value.
How to use it
- Enter the requested values.
- Choose the calculation mode when available.
- Review the result and supporting breakdown.
Formula
Supports +, −, ×, ÷, powers (^), parentheses, sqrt, log, log10, sin, cos, tan, inverse trig, pi, e, and factorial (!).
Inputs used: Expression, Angle mode.
Edge handling: Expression is required..
Worked example
Evaluate a scientific expression
- Start with Expression: sin(30) + sqrt(16) + log10(100), Angle mode: deg.
- Apply the method: Supports +, −, ×, ÷, powers (^), parentheses, sqrt, log, log10, sin, cos, tan, inverse trig, pi, e, and factorial (!).
- sin(30°) + √16 + log₁₀(100) = 6.5.
Reading the result
The headline figure is the main answer. Any breakdown underneath shows the parts that make it up, so you can check the working and see what changes when you adjust an input.
Limitations and assumptions
- Inputs outside the supported range are rejected rather than forced into a result.
- The result depends on the values you enter for this scientific calculator; it does not supply missing rates, rules, prices, dates, or assumptions for you.
Common questions
Is there a free online scientific calculator?
A scientific calculator evaluates an expression with powers, roots, logarithms and trigonometry using the standard order of operations. Check the formula, example, and limitations on this page before using the result for a real math decision.
Are trig inputs degrees or radians?
Choose the angle mode before evaluating. Check the formula, example, and limitations on this page before using the result for a real math decision.
Can expressions return complex values?
No. This calculator reports finite real-number results only.
Is this a free online calculator?
Yes. It runs in your browser with no app to install and no sign-up, and handles everyday arithmetic as well as powers, roots, logs and trigonometry.
Is this the same as the Desmos scientific calculator?
No. This is an independent free alternative and is not affiliated with Desmos. It evaluates typed expressions but does not draw graphs.
How do I use the Scientific Calculator?
Enter the required values for Expression, Angle mode. The calculator applies the formula on this page and shows the main result with any supporting breakdown so you can check the arithmetic.
Cite this page
Free Calculator. (n.d.). Scientific Calculator. https://freecalculator.tech/tools/scientific-calculator
"Scientific Calculator." Free Calculator, https://freecalculator.tech/tools/scientific-calculator.
Scientific Calculator — Free Calculator, https://freecalculator.tech/tools/scientific-calculator
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