Everyday calculations
Choose Basic or Multi-Function calculators for routine arithmetic, percentages, fractions, and common conversions.
Fast · Free · Carefully explained
Online Mathematics Calculators
Find a calculator, enter your values, and get a clear result with formulas and worked examples.
Calculator studio
Basic, scientific, and programmer calculators
Calculate directly on the homepage, switch between everyday, advanced, and bitwise modes, or expand the workspace to full screen.
Basic · Arithmetic
Percent is postfix: 10% becomes 0.1.
Scientific · Degrees
Safe allowlisted parser · No eval() · Angles in degrees
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Calculator directory
General Calculator Types
Explore the major calculator families used for everyday, academic, financial, and technical work.
- Basic Calculators
- Scientific Calculators
- Graphing Calculators
- Financial Calculators
- Statistical Calculators
- Engineering Calculators
- Programmer Calculators
- RPN Calculators
- Symbolic & CAS Calculators
- Matrix & Vector Calculators
- High-Precision Calculators
- Arbitrary-Precision Calculators
- Complex Number Calculators
- Multi-Function Calculators
Quick guide
Which calculator should I choose?
Start with the type that matches the problem you need to solve.
Advanced mathematics
Scientific, Graphing, Symbolic, and CAS calculators support functions, equations, visual analysis, and algebraic work.
Finance and data
Financial and Statistical calculators help analyze money, rates, datasets, probability, and trends.
Technical computing
Engineering, Programmer, RPN, Matrix, Vector, and precision calculators are designed for specialized technical workflows.
Built for understanding
Clear math, not just an answer
Every published tool includes readable formulas, examples, domain notes, and technical sources.
- AccurateTested calculation engines.
- Mobile-friendlyComfortable touch targets.
- TransparentMethods and examples.
- FocusedOnly ready tools are public.