Math Calculators

Scientific Calculator

Advanced scientific calculator with trig (sin/cos/tan and inverses), sqrt, log, ln, π, e, factorial, and degrees/radians toggle. Includes calculation history.

Trig / Log / ln
Degrees & Radians
π & e Constants
Calculation History
Browser-only

Mode

Degrees

History

No calculations yet

Scientific calculator

Use this browser-based scientific calculator for arithmetic, trigonometry, logarithms, powers, factorials, and common constants. Select degrees or radians before evaluating trigonometric expressions.

Supported expressions

Function	Example
Trigonometry	`sin(30)`, `cos(π)`
Logarithms	`log(100)`, `ln(e)`
Powers and roots	`2^8`, `sqrt(81)`
Factorials	`5!`

All evaluation happens locally. Use crypto-independent deterministic math functions for repeatable calculations.

Math.sin(Math.PI / 6);
Math.sqrt(81);

Degrees and radians

Degrees are convenient for angles such as 30° or 45°. Radians are standard in calculus and programming. Toggle the angle mode before pressing equals.

Frequently Asked Questions

What functions are available?: Trigonometry (sin, cos, tan, and inverses), logarithms (log, ln), square root, power, factorial, pi, and Euler's number (e).
Does it support degrees and radians?: Yes. You can switch between Degree and Radian mode for all trigonometric functions.
What is the order of operations?: The calculator follows standard mathematical order of operations (PEMDAS/BODMAS): parentheses, exponents, multiplication/division, addition/subtraction.
Can I use it for complex equations?: You can chain operations and use parentheses for grouping. For symbolic math or CAS capabilities, a dedicated tool like WolframAlpha is recommended.
Are my calculations stored or sent anywhere?: The last ten calculations stay in local component state, and expressions are evaluated in your browser without being sent to a server.

Disclaimer

This tool is provided for general informational and utility purposes only. Results may be inaccurate, incomplete, outdated, or contain errors. Always verify results before relying on or using them.

Some tools may use AI, automated processing, third-party services, or server-side processing. Do not rely on these tools as a substitute for professional advice.

Use at your own risk. BestToolOnline makes no guarantees regarding the accuracy, reliability, completeness, availability, or suitability of results, to the maximum extent permitted by applicable law.

See our Terms of Service and Privacy Policy for complete details.

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Scientific calculator

Use this browser-based scientific calculator for arithmetic, trigonometry, logarithms, powers, factorials, and common constants. Select degrees or radians before evaluating trigonometric expressions.

Supported expressions

Function

Example

Trigonometry

sin(30), cos(π)

Logarithms

log(100), ln(e)

Powers and roots

2^8, sqrt(81)

Factorials

5!

All evaluation happens locally. Use crypto-independent deterministic math functions for repeatable calculations.

Math.sin(Math.PI / 6); Math.sqrt(81);

Degrees and radians

Degrees are convenient for angles such as 30° or 45°. Radians are standard in calculus and programming. Toggle the angle mode before pressing equals.

Frequently Asked Questions

What functions are available?

Trigonometry (sin, cos, tan, and inverses), logarithms (log, ln), square root, power, factorial, pi, and Euler's number (e).

Does it support degrees and radians?

Yes. You can switch between Degree and Radian mode for all trigonometric functions.

What is the order of operations?

The calculator follows standard mathematical order of operations (PEMDAS/BODMAS): parentheses, exponents, multiplication/division, addition/subtraction.

Can I use it for complex equations?

You can chain operations and use parentheses for grouping. For symbolic math or CAS capabilities, a dedicated tool like WolframAlpha is recommended.

Are my calculations stored or sent anywhere?

The last ten calculations stay in local component state, and expressions are evaluated in your browser without being sent to a server.

Disclaimer

Some tools may use AI, automated processing, third-party services, or server-side processing. Do not rely on these tools as a substitute for professional advice.