EEasynivo
Free online tool

Scientific Calculator

Evaluate powers, roots, logarithms, percentages and trigonometric expressions safely.

Enter your values

Result

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Enter the values and choose Calculate.

Result—

How to use this tool

Enter an expression or use the keypad, then choose degrees or radians for trigonometry.

  1. Enter your values
  2. Calculate
  3. Copy · Share

Formula and method

Standard operator precedence is applied to +, −, ×, ÷, powers and supported functions.

Worked example

sin(30) + sqrt(16) = 4.5 in degree mode.

Frequently asked questions

Is this tool free and private?

Yes. It is free to use without an account, and the calculation runs in your browser.

Scientific Calculator

Evaluate powers, roots, logarithms, percentages and trigonometric expressions safely.

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Calculate the mean, sum, count, minimum and maximum of a list of numbers.

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Percentage Calculator

Calculate percentages, percentage increases and decreases instantly. Free, private and easy to use with clear formulas and examples.

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Content basis and verification

· Calculations run in your browser. Check the formula and assumptions on this page, and confirm important financial, tax, medical or legal decisions against current official guidance.