Online Calculator

What Online Calculator does

Calculate everyday and scientific expressions with a readable input, operator precedence, parentheses, trigonometry, logarithms and memory controls.

Worked example

How the result is produced

The calculator evaluates parentheses first, then powers and scientific functions, followed by multiplication or division and finally addition or subtraction. Trigonometric answers depend on the selected degree or radian mode.

Useful workflows

• Check a bill that combines tax and a fixed fee
• Evaluate a scientific expression without installing an app
• Keep an intermediate value in memory while comparing alternatives

Important limits

• Confirm degree versus radian mode before using sin, cos or tan.
• Browser floating-point arithmetic can show tiny rounding artifacts.
• This is a general calculator, not a certified finance, medical or engineering system.

Frequently asked questions

Why does 2 + 3 × 4 equal 14?

Multiplication has higher precedence than addition. Enter (2 + 3) × 4 when you want 20.

Can I use this for financial decisions?

It can check arithmetic, but it does not model taxes, fees, compounding rules or jurisdiction-specific requirements unless you enter them explicitly.

When should I use radians instead of degrees?

Use radians for formulas and calculus unless the problem explicitly gives angles in degrees; confirm the active mode before evaluating.