home / math / online calculator free

Online Calculator Free

Calculator Type
Expression
Number A
Number B
Operation
Angle Unit
Precision
Output Format
Show Calculation Steps
Show Formula Used
Show Visual Representation
Verify Result

Result: 2 + 3 × 4 = 14

Calculator Type		Basic Calculator
Expression		2 + 3 × 4
Result		14
Operation		Mixed Operations
Format		Decimal
Precision		4 decimals

Calculation Steps:
1. Expression: 2 + 3 × 4
2. Apply order of operations (PEMDAS/BODMAS)
3. First: Multiplication: 3 × 4 = 12
4. Then: Addition: 2 + 12 = 14
5. Final Result: 14
6. Verification: 2 + (3 × 4) = 2 + 12 = 14 ✓

Mathematical Representation:

Expression: 2 + 3 × 4
Order: 2 + (3 × 4)
Result: 14

Free Online Calculator Tools

Basic Calculator Free	Scientific Calculator Free
Graphing Calculator Free	Financial Calculator Free
Percentage Calculator Free	Fraction Calculator Free
Algebra Calculator Free	Unit Converter Free

About Online Calculator Free

Online Calculator Free is an advanced and completely free mathematical tool designed to perform all types of calculations quickly and accurately. This free online calculator is perfect for students, teachers, engineers, and anyone who needs to perform calculations at no cost.

Why Choose Our Online Calculator Free?

100% Free and Online

Our online calculator is completely free and works online without restrictions. No downloads, installations, registrations, or payments required. Simply access from your browser and start calculating immediately.

Free Online Features:

Instant Access: Calculate instantly online
No Downloads: Works directly in your browser
Cross-Platform: Compatible with PC, tablet, and mobile
All Calculator Types: Basic, scientific, graphing, financial
Detailed Steps: Complete explanation of the process
Automatic Verification: Result checking

Types of Free Online Calculators Available

1. Basic Calculator Free Online

Essential arithmetic operations: Addition, subtraction, multiplication, and division

Basic Calculator Features:

Four Operations: +, -, ×, ÷
Order of Operations: PEMDAS/BODMAS support
Memory Functions: Store and recall values
Percentage Calculations: Quick percentage operations

Example: 2 + 3 × 4 = 14 (multiplication first)

Applications: Daily calculations, shopping, basic math homework

2. Scientific Calculator Free Online

Advanced mathematical functions: Trigonometry, logarithms, exponentials, and more

Scientific Calculator Features:

Trigonometric Functions: sin, cos, tan, and their inverses
Logarithmic Functions: log, ln, exponentials
Statistical Functions: Mean, standard deviation, combinations
Constants: π, e, and other mathematical constants

Example: sin(30°) = 0.5, log₁₀(100) = 2

Applications: Physics, chemistry, engineering, advanced mathematics

3. Graphing Calculator Free Online

Visual mathematics: Plot functions, analyze graphs, and solve equations graphically

Graphing Calculator Features:

Function Plotting: Graph linear, quadratic, polynomial functions
Multiple Functions: Plot several functions simultaneously
Zoom and Pan: Interactive graph exploration
Intersection Points: Find where functions meet

Example: Graph y = x² and y = 2x + 1, find intersections

Applications: Calculus, algebra, data analysis, research

4. Financial Calculator Free Online

Money calculations: Interest, loans, investments, and financial planning

Financial Calculator Features:

Compound Interest: Calculate investment growth
Loan Payments: Monthly payment calculations
Present Value: Time value of money calculations
Retirement Planning: Savings and withdrawal calculations

Example: $1000 at 5% annual interest for 10 years = $1628.89

Applications: Personal finance, business planning, investment analysis

5. Percentage Calculator Free Online

Percentage operations: Calculate percentages, percentage change, and ratios

Percentage Calculator Features:

Basic Percentages: What is X% of Y?
Percentage Change: Increase/decrease calculations
Percentage of Total: Part-to-whole relationships
Percentage Points: Difference between percentages

Example: 25% of 80 = 20, 20% increase from 100 = 120

Applications: Sales calculations, statistics, grade calculations

6. Fraction Calculator Free Online

Fraction arithmetic: Add, subtract, multiply, and divide fractions

Fraction Calculator Features:

Basic Operations: +, -, ×, ÷ with fractions
Simplification: Reduce fractions to lowest terms
Mixed Numbers: Convert between improper and mixed fractions
Decimal Conversion: Convert fractions to decimals

Example: 1/2 + 1/3 = 3/6 + 2/6 = 5/6

Applications: Cooking, construction, elementary mathematics

7. Algebra Calculator Free Online

Algebraic operations: Solve equations, factor polynomials, and simplify expressions

Algebra Calculator Features:

Equation Solving: Linear and quadratic equations
Factoring: Factor polynomials and expressions
Simplification: Simplify complex algebraic expressions
System of Equations: Solve multiple equations simultaneously

Example: Solve x² - 5x + 6 = 0 → x = 2 or x = 3

Applications: Algebra homework, engineering calculations, problem solving

8. Unit Converter Free Online

Unit conversions: Convert between different units of measurement

Unit Converter Features:

Length: Meters, feet, inches, kilometers, miles
Weight: Kilograms, pounds, ounces, grams
Temperature: Celsius, Fahrenheit, Kelvin
Volume: Liters, gallons, cups, milliliters

Example: 100°F = 37.78°C, 1 mile = 1.609 kilometers

Applications: International trade, cooking, travel, science

How to Use Online Calculator Free

Step 1: Choose Calculator Type

Basic Calculator: For simple arithmetic operations
Scientific Calculator: For advanced mathematical functions
Graphing Calculator: For plotting and analyzing functions
Financial Calculator: For money and investment calculations
Percentage Calculator: For percentage operations
Fraction Calculator: For fraction arithmetic
Algebra Calculator: For solving equations
Unit Converter: For unit conversions

Step 2: Enter Your Values

Type numbers and expressions in the input fields
Use standard mathematical notation
For expressions: 2+3*4, sin(30), sqrt(16)
For basic operations: enter two numbers and select operation
Check input format for specific calculator types

Step 3: Configure Settings

Precision: Number of decimal places (2-10)
Output Format: Decimal, fraction, scientific notation
Angle Unit: Degrees, radians, or gradians (for trigonometry)
Display Options: Show steps, formulas, visual representations

Step 4: Calculate and Review

Click "Calculate" or press Enter to compute
Review the result in the right panel
Check calculation steps if enabled
Verify the result makes sense
Use "Clear" to start a new calculation

Applications of Free Online Calculators

In Education

Mathematics Learning: Practice arithmetic, algebra, calculus
Science Classes: Physics calculations, chemistry problems
Homework Help: Step-by-step solutions and verification
Test Preparation: Practice for standardized tests

In Professional Work

Engineering: Technical calculations, design computations
Finance: Investment analysis, loan calculations
Business: Profit margins, percentage calculations
Research: Statistical analysis, data processing

In Daily Life

Shopping: Discounts, tax calculations, price comparisons
Cooking: Recipe scaling, unit conversions
Home Projects: Measurements, material calculations
Travel: Currency conversion, distance calculations

In Personal Finance

Budgeting: Income and expense calculations
Savings: Interest calculations, goal planning
Loans: Payment calculations, interest costs
Investments: Return calculations, risk analysis