Free Scientific Math Calculator

Scientific math calculator with a visible operation trail

Use this calculator when you already have a numeric expression and want a fast result you can inspect. Gionth parses the expression with a strict list of supported numbers, operators, constants, and functions. It does not execute typed code, send the expression to an AI model, or require an account.

The operation trail evaluates the expression from the inside out. For (5 + 3) × 2, it records 5 + 3 = 8 before 8 × 2 = 16. That makes order-of-operations mistakes easier to spot without pretending that a calculator trace is a full mathematical proof.

Supported operations and functions

• Arithmetic: addition, subtraction, multiplication, division, parentheses, and powers using ^.
• Trigonometry: sin, cos, tan, asin, acos, and atan, with an explicit degrees/radians selector.
• Scientific functions: sqrt, base-10 log, natural ln, and abs.
• Constants: pi or π and e. Implicit multiplication works in expressions such as 2pi and 2(3 + 4).
• Percent: 10% means 0.1. Write 200 × 10% to calculate 10% of 200.

For exact rational arithmetic, prefer the fraction calculator. This tool uses browser floating-point numbers, so some decimal results are approximations and are displayed with up to 12 significant digits.

Private calculation history

Your latest 12 calculations stay in this browser so you can reuse an expression after refreshing the page. The history is not uploaded to Gionth and does not follow you to another device. Use Clear history whenever you want to remove it.

What this calculator does not do

It does not solve equations containing variables, simplify symbolic expressions, draw graphs, or explain a word problem. Those are different tasks. Use the equation solver for equations involving x, or the AI math solver guide when you need to translate a written problem into mathematics. Always verify AI-generated steps independently.

Math calculator FAQ

Is this math calculator free?

Yes. The calculator, operation trail, degree/radian modes, and device-local history are free with no account required.

Does the calculator follow order of operations?

Yes. Parentheses and exponents are evaluated before multiplication and division, followed by addition and subtraction.

Are trigonometric functions in degrees or radians?

You choose the angle mode beside the expression field. Degrees are selected by default, and each trigonometric step labels the mode used.

Is my calculation history uploaded?

No. Recent expressions are stored only in this browser using local storage. Clear history at any time from the calculator.

Can it solve equations with variables?

No. This deterministic calculator evaluates numeric expressions. Use the equation solver for equations involving variables, and verify its steps.