# All-in-One Calculator

> One premium calculator with live expression evaluation, percentages, quadratic and simultaneous equations, number bases and number theory - all with visible steps.

Free all-in-one calculator: scientific expressions with trig, logs and constants, percentage tools, quadratic and simultaneous equation solvers, binary/octal/hex base conversion, GCD, LCM and prime factorization. Instant, private, step-by-step.

- **Canonical:** https://www.ailovekit.com/calculators/all-in-one-calculator/
- **Category:** Calculator
- **Processing:** Runs entirely in your browser. Files are never uploaded to AiLoveKit servers.

## How It Calculates

- **Formula:** safe expression parser + dedicated solvers per tab

All calculation runs locally in your browser; results update as you type and include the substituted working.

## Five Calculators Behind One Clean Interface

The **All-in-One Advanced Calculator** replaces a drawer full of single-purpose tools. Switch tabs to move from a live scientific expression evaluator to percentage questions, equation solvers, base conversion and number theory - each one instant, each one showing its working.

## What Each Tab Does

- **Expression** - evaluates as you type, with a function keypad, Ans memory and degree/radian switching.

- **Percentage** - answers the three classic questions (X% of Y, % change, part-of-whole) in one view.

- **Equations** - quadratic roots with discriminant, plus 2×2 simultaneous equations.

- **Number Bases** - decimal, binary, octal and hexadecimal in all directions.

- **Number Theory** - GCD, LCM, modulo, primality and prime factorization.

Need a focused tool instead? Try the [Geometry Calculator](https://www.ailovekit.com/calculators/geometry-calculator/) or the [Financial Calculator](https://www.ailovekit.com/calculators/financial-calculator/).

## Frequently Asked Questions

**What can the expression tab evaluate?**

Standard arithmetic with parentheses, powers and modulus, trigonometric and inverse trig functions, hyperbolic functions, logarithms (ln and log10), roots, rounding functions and the constants pi, e and phi. Degrees or radians, your choice. Ans recalls the previous result.

**Does it solve equations?**

Yes: quadratic equations with the discriminant shown (including complex roots), and pairs of simultaneous linear equations via Cramer’s rule.

**Which number bases are supported?**

Binary (2), octal (8), decimal (10) and hexadecimal (16), converted in every direction at once.

**Is my input sent anywhere?**

No. The parser runs entirely in your browser and only accepts mathematical expressions - it cannot execute code.

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Source: https://www.ailovekit.com/calculators/all-in-one-calculator/
Part of AiLoveKit: https://www.ailovekit.com/
Machine-readable index: https://www.ailovekit.com/llms.txt