Ferramentas matemáticas online gratuitas para estudantes, professores e profissionais.
Resolva problemas de álgebra, aritmética, geometria, estatística e cálculo instantaneamente com soluções passo a passo.
Aritmética
Operações matemáticas básicas, incluindo frações, porcentagens, proporções e cálculos fundamentais.
Percentage Calculadora
Fraction Calculadora
Ratio Calculadora
Decimal to Fraction Conversor
Fraction to Decimal Conversor
Percentage Increase Calculadora
Percentage Decrease Calculadora
Proportion Calculadora
Percentage Change Calculadora
Mixed Number Calculadora
Average Calculadora
Order of Operations Solucionador
Calculadora básica
Absolute Change Calculator
Associative Property Calculator
Compatible Numbers Calculator
Consecutive Integers Calculator
Distributive Property Calculator
Egyptian Fractions Calculator
Long Addition Calculator
Multiplicative Inverse Calculator
Order of Magnitude Calculator
Partial Products Calculator
Perfect Cube Calculator
Perfect Square Calculator
Pi Approximation Calculator
Powers of i Calculator
Reciprocal Calculator
Round to the Nearest Thousand Calculator
Digit Sum Calculator
Sum of Products Calculator
Terminating Decimals Calculator
Álgebra
Solucionadores de equações, ferramentas de fatoração, fórmulas quadráticas e simplificadores de expressões.
Eigenvalue Calculator
Eigenvector Calculator
Characteristic Polynomial Calculator
LU Decomposition (Gauss Elimination)
LU Decomposition (Doolittle's Method)
LU Decomposition (Crout's Method)
Matrix Rank Calculator
Upper Triangular Matrix Calculator
Lower Triangular Matrix Calculator
Reduced Row Echelon Form (RREF) Calculator
Row Echelon Form Calculator
Scientific Calculadora
Quadratic Formula Solucionador
Linear Equation Solucionador
System of Equations Solucionador
Algebraic Expression Simplifier
Matrix Calculadora
Polynomial Equation Solucionador
Algebra Equation Solucionador
Calculadora de transformação de vetor 2D
Ceiling Function Calculator
Floor Division Calculator
Floor Function Calculator
Greater Than or Less Than Calculator
Polish Notation Converter
Reverse FOIL Calculator
Nth Root Calculator | Find Roots Easily
Set Builder Notation Calculator
Geometria
Calculadoras de área, perímetro e volume com visualizações SVG interativas para todas as formas.
Area Calculadora
Volume Calculadora
Circle Calculadora
Perimeter Calculadora
Pythagorean Theorem Calculadora
Surface Area Calculadora
Triangle Calculadora
Sphere Calculadora
Cylinder Calculadora
Cone Calculadora
Trapezoid Calculadora
Ellipse Calculadora
Rectangle Calculadora
Arc Length Calculadora
Distance Formula Calculadora
Trigonometria
Calculadoras de seno, cosseno, tangente, conversores de ângulos e solucionadores de triângulos.
Sine Calculadora
Cosine Calculadora
Tangent Calculadora
Right Triangle Solucionador
Trigonometric Functions Calculadora
Angle Conversor
Estatística
Ferramentas de média, mediana, moda, desvio padrão, probabilidade e análise de dados.
Mean Median Mode Calculadora
Standard Deviation Calculadora
Variance Calculadora
Probability Calculadora
Permutation and Combination Calculadora
Z-Score Calculadora
Percentile Calculadora
Weighted Average Calculadora
Quartile Calculadora
Correlation Coefficient Calculadora
Fundamental Counting Principle Calculator
Geometric Mean Calculator
Harmonic Mean Calculator
Cálculo
Calculadoras de derivadas, solucionadores de integrais, avaliadores de limites e ferramentas de séries.
Derivative Calculadora
Integral Calculadora
Limit Calculadora
Series Calculadora
Definite Integral Solucionador
Conversão de Unidades
Converta entre unidades de comprimento, peso, temperatura, tempo, velocidade e mais.
Length Conversor
Weight Conversor
Temperature Conversor
Area Conversor
Volume Conversor
Speed Conversor
Time Conversor
Digital Storage Conversor
Energy Conversor
Power Conversor
Pressure Conversor
Angle Unit Conversor
Force Conversor
Torque Conversor
Base Converter - Online Tool
Teoria dos Números
Fatoração prima, MDC, MMC, algarismos romanos, nomes de números e ferramentas de divisibilidade.
GCF Calculadora
LCM Calculadora
Prime Factorization Tool
Significant Figures Calculadora
Rounding Calculadora
Binary Conversor
Hexadecimal Conversor
Roman Numerals Conversor
Divisibility Calculadora
Number Names Conversor
Prime Number Checker
Digital Root Calculator
GCF and LCM Calculator
Magic Square Calculator
Modular Multiplicative Inverse Calculator
Relatively Prime Calculator
Triangular Numbers Calculator
Fermat's Little Theorem Calculator
Power Mod Calculator
Ferramentas Gráficas
Trace funções, visualize equações, geometria de coordenadas e gráficos interativos.
Function Plotter
Line Graph Gerador
Coordinate Geometry Solucionador
Equation Grapher
Visualizador de geometria de coordenadas
Electric
Calculators for Ohm's law, power, voltage drop, and electrical engineering.
Light
Calculators for illuminance and lux measurements.
Finance
Calculators for mortgages, compound interest, discounts, and VAT/GST.
Calculadora de hipotecas
Calculadora de juros compostos
Calculadora de juros simples
Calculadora de descontos
Calculadora de IVA (VAT/GST)
Grades
Calculators for GPA and final grades for students and teachers.
Health
Calculators for BMI and other health metrics.
Text Tools
Word counters, ASCII converters, and online notepads.
Web Tools
RGB color converters and other web utilities.
Most used tools.
Jump straight into the calculators our users love most.
Percentage Calculadora
Calcular percentages, Encontrar what percent one number is of another, or determine the whole from a percentage.
Fraction Calculadora
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Ratio Calculadora
Resolver ratios, Encontrar equivalent ratios, and Converter ratios to fractions or percentages.
Scientific Calculadora
A full-featured scientific calculator with trigonometric, logarithmic, and exponential functions.
Area Calculadora
Calcular the area of rectangles, triangles, circles, trapezoids, and more with visual diagrams.
Volume Calculadora
Encontrar the volume of cubes, spheres, cylinders, cones, and other 3D shapes.
GCF Calculadora
Encontrar the Greatest Common Factor of two or more numbers using prime factorization or the Euclidean algorithm.
LCM Calculadora
Calcular the Least Common Multiple of two or more numbers instantly.
Prime Factorization Tool
Break down any number into its prime factors with a visual factor tree.
Significant Figures Calculadora
Count significant figures and round numbers to the correct number of sig figs.
Construído para a sua forma de aprender.
Cada detalhe é desenhado para tornar a matemática acessível, rápida e compreensível.
Cálculos Instantâneos
Resultados surgem conforme digita. Sem recarregamentos de página — matemática em tempo real.
Ideal para Telemóveis
Cada ferramenta é desenhada mobile-first. Calcule em qualquer lugar, em qualquer dispositivo.
Gratuito para Sempre
Todas as ferramentas são grátis. Sem subscrições, taxas ocultas ou barreiras de acesso.
Sem Registo
Comece a calcular imediatamente. Sem contas, e-mails ou recolha de dados pessoais.
Resultados Precisos
Algoritmos desenhados para precisão. Resultados em que pode confiar nos estudos ou no trabalho.
Explicativos e Educativos
Cada ferramenta inclui soluções passo a passo, fórmulas e exemplos para facilitar a aprendizagem.
What Are Online Math Tools?
Online math tools are web-based calculators and interactive utilities designed to help you solve mathematical problems quickly and accurately. Unlike traditional calculators, modern online math tools provide step-by-step solutions, visual diagrams, and educational explanations that help you understand the underlying concepts — not just get the answer.
At Basic Math Tools, we offer a comprehensive suite of free calculators spanning arithmetic, algebra, geometry, trigonometry, statistics, calculus, number theory, unit conversion, and graphing. Whether you're a student working through homework, a teacher preparing lesson materials, or a professional needing quick calculations, our tools are built for you.
How Math Calculators Help Students
Mathematics can be challenging, but having the right tools makes a significant difference in learning outcomes. Online math calculators serve as powerful educational companions by providing:
Instant verification
Check your homework answers and identify mistakes before submitting assignments.
Step-by-step breakdowns
See exactly how a problem is solved, from the initial setup to the final answer, helping you learn the process rather than memorizing results.
Visual learning aids
Our geometry tools include interactive SVG diagrams that illustrate shapes, angles, and measurements, making abstract concepts tangible.
Practice and exploration
Experiment with different inputs to build intuition about mathematical relationships and patterns.
Formula reference
Every tool page includes the relevant formulas, definitions, and common examples for quick review.
Benefits of Using Basic Math Tools
Our platform is designed with a focus on speed, accuracy, and education. Here's what sets Basic Math Tools apart from other calculator websites:
No registration required
Start calculating immediately. We don't require accounts, email addresses, or personal information.
Completely free
Every tool on our platform is free to use, with no premium tiers or hidden fees.
Lightning-fast performance
Built with modern web technologies for instant loading and real-time calculations without page reloads.
Mobile-optimized
Every calculator works beautifully on phones, tablets, and desktops. Calculate on the go from any device.
Educational content
Each tool includes detailed explanations, worked examples, FAQs, and formula references to support learning.
Accessible design
Clean, high-contrast design with keyboard navigation support and screen reader compatibility.
Educational Use Cases
Basic Math Tools serves a wide range of educational and professional needs:
K-12 students
From basic fraction and percentage calculations to geometry and algebra problem-solving, our tools support curriculum-aligned learning at every grade level.
College and university students
Advanced tools for statistics, calculus, and scientific calculations help with coursework, lab reports, and exam preparation.
Teachers and educators
Generate examples, verify solutions, and create visual aids for classroom instruction. Our step-by-step solutions make excellent teaching demonstrations.
Professionals
Engineers, architects, accountants, and scientists use our unit converters, geometry calculators, and statistical tools for quick, reliable calculations in their daily work.
Parents and tutors
Support students with homework help using our clear, educational explanations and worked examples.
Ready to start calculating?
Our growing library includes calculators for percentages, greatest common factors, area and perimeter, prime factorization, unit conversion, and many more.
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