Math / Browser calculator

Basic Calculator

Basic Calculator works from the inputs you provide and returns result. Use the calculation panel to explore a scenario, then check the formula and limitations before applying the result.

Your inputs

Your results

Enter your values and calculate to see the result.

Formula and calculation method

Evaluate parentheses, powers, unary signs, multiplication and division, then addition and subtraction.

Supported functions: sin, cos, tan, asin, acos, atan, sqrt, abs, ln, log and exp. Angles are in radians; constants pi and e are available. Powers are right-associative.

How to use basic calculator

  1. Set Expression. The example below uses 2 + 3 * (4 - 1).
  2. Select Calculate to update the result. Reset restores the illustrated inputs. Copy, print or download your own result if you need a record.

Worked example

Example inputs
Expression
2 + 3 * (4 - 1)
Result
11

Factors affecting your result

Supported functions: sin, cos, tan, asin, acos, atan, sqrt, abs, ln, log and exp. Angles are in radians; constants pi and e are available. Powers are right-associative.

Changing expression changes the scenario being evaluated. Adjust one input at a time when comparing results, keep a copy of the assumptions, and compare values using the same unit and period. A precise arithmetic result does not make an uncertain assumption precise.

Frequently asked questions

How does the basic calculator work?

Evaluate parentheses, powers, unary signs, multiplication and division, then addition and subtraction.

What inputs does Basic Calculator need?

Enter expression. Choose values that correspond to the same situation and measurement convention.

How should I interpret the basic calculator result?

Supported functions: sin, cos, tan, asin, acos, atan, sqrt, abs, ln, log and exp. Angles are in radians; constants pi and e are available. Powers are right-associative.

Are my basic calculator inputs uploaded?

No. The calculation runs in this browser. Favorites, recent tool names, theme and formatting preferences may be saved locally, but calculation inputs are not sent to a calculation server or stored by this website. Shared links do not include entered values.

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