算数
分数、パーセンテージ、比率、基礎計算を含む基本的な数学演算。
Percentage 電卓
Fraction 電卓
Ratio 電卓
Decimal to Fraction コンバーター
Fraction to Decimal コンバーター
Percentage Increase 電卓
Percentage Decrease 電卓
Proportion 電卓
Percentage Change 電卓
Mixed Number 電卓
Average 電卓
Order of Operations ソルバー
電卓
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
代数学
方程式ソルバー、因数分解ツール、二次方程式、式の単純化ツール。
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 電卓
Quadratic Formula ソルバー
Linear Equation ソルバー
System of Equations ソルバー
Algebraic Expression Simplifier
Matrix 電卓
Polynomial Equation ソルバー
Algebra Equation ソルバー
2Dベクトル変換計算機
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
幾何学
すべての形状のインタラクティブなSVG視覚化機能を備えた面積、周囲長、体積の計算ツール。
Area 電卓
Volume 電卓
Circle 電卓
Perimeter 電卓
Pythagorean Theorem 電卓
Surface Area 電卓
Triangle 電卓
Sphere 電卓
Cylinder 電卓
Cone 電卓
Trapezoid 電卓
Ellipse 電卓
Rectangle 電卓
Arc Length 電卓
Distance Formula 電卓
三角法
サイン、コサイン、タンジェント計算ツール、角度換算、三角形ソルバー。
統計学
平均、中央値、最頻値、標準偏差、確率、データ分析ツール。
Mean Median Mode 電卓
Standard Deviation 電卓
Variance 電卓
Probability 電卓
Permutation and Combination 電卓
Z-Score 電卓
Percentile 電卓
Weighted Average 電卓
Quartile 電卓
Correlation Coefficient 電卓
Fundamental Counting Principle Calculator
Geometric Mean Calculator
Harmonic Mean Calculator
単位換算
長さ、重さ、温度、時間、速度などの単位を相互に換算します。
Length コンバーター
Weight コンバーター
Temperature コンバーター
Area コンバーター
Volume コンバーター
Speed コンバーター
Time コンバーター
Digital Storage コンバーター
Energy コンバーター
Power コンバーター
Pressure コンバーター
Angle Unit コンバーター
Force コンバーター
Torque コンバーター
Base Converter - Online Tool
数論
素因数分解、最大公約数、最小公倍数、ローマ数字、数の読み方、整除性ツール。
GCF 電卓
LCM 電卓
Prime Factorization Tool
Significant Figures 電卓
Rounding 電卓
Binary コンバーター
Hexadecimal コンバーター
Roman Numerals コンバーター
Divisibility 電卓
Number Names コンバーター
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
グラフ作成ツール
関数のプロット、方程式の視覚化、座標幾何学、インタラクティブなグラフ。
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.
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 電卓
計算する percentages, 見つける what percent one number is of another, or determine the whole from a percentage.
Fraction 電卓
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Ratio 電卓
解く ratios, 見つける equivalent ratios, and 換算する ratios to fractions or percentages.
Scientific 電卓
A full-featured scientific calculator with trigonometric, logarithmic, and exponential functions.
Area 電卓
計算する the area of rectangles, triangles, circles, trapezoids, and more with visual diagrams.
Volume 電卓
見つける the volume of cubes, spheres, cylinders, cones, and other 3D shapes.
GCF 電卓
見つける the Greatest Common Factor of two or more numbers using prime factorization or the Euclidean algorithm.
LCM 電卓
計算する 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 電卓
Count significant figures and round numbers to the correct number of sig figs.
あなたの学習スタイルに合わせて設計されています。
すべてのディテールは、数学をわかりやすく、素早く、身近なものにするために設計されています。
即座に計算
入力と同時に結果が表示されます。ページの再読み込みや待ち時間はありません。
モバイル対応
すべてのツールはモバイルファーストで設計されています。外出先からでも計算できます。
永久に無料
すべてのツールは完全に無料です。プレミアム階層や隠れた料金はありません。
会員登録不要
すぐに計算を始められます。アカウント登録や個人情報の収集はありません。
正確な結果
精密に設計されたアルゴリズム。宿題や仕事、研究に信頼できる結果を提供します。
解説付き
すべてのツールにステップバイステップの解説、公式、例題が含まれています。
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.
Explore All Tools