Scientific & Math Calculators
Free online scientific, graphing, matrix, fraction, geometry, and equation solver calculators for students, engineers, and professionals.
Master mathematics with our comprehensive suite of scientific and math calculators. From basic percentage calculations to advanced matrix operations, graphing functions, and solving complex equations, our tools provide accurate results with step-by-step solutions to help students, educators, and professionals excel.
Available Tools
Advanced calculator with trigonometric, logarithmic, exponential, and statistical functions. Supports multiple angle modes (degrees, radians, gradians) and number systems.
Calculate percentages, percentage increase/decrease, and percentage of a number. Perfect for discounts, tips, grades, interest rates, and statistical analysis.
Add, subtract, multiply, and divide fractions with step-by-step solutions. Simplify fractions and convert between mixed numbers and improper fractions.
Calculate area, perimeter, volume, and surface area for 2D and 3D shapes. Supports triangles, circles, rectangles, spheres, cylinders, and more with detailed formulas.
Graph mathematical functions and visualize equations. Plot multiple functions simultaneously with zoom, pan, and customizable axes. Supports trigonometric, exponential, and polynomial functions.
Perform matrix operations including addition, subtraction, multiplication, determinant, inverse, and transpose. Supports matrices up to 10x10 with step-by-step solutions.
Solve linear, quadratic, cubic, and polynomial equations. Get step-by-step solutions with real and complex roots. Supports numerical methods for transcendental equations.
Why Use These Calculators?
Scientific and math calculators are essential tools for learning, teaching, and applying mathematical concepts. Whether you're a student solving homework problems, a teacher preparing lessons, or a professional working with numerical data, these calculators provide instant, accurate solutions with detailed explanations.
Our calculators go beyond simple computation by offering step-by-step solutions, visual representations (like graphs), and support for multiple numeral systems and angle modes. They're designed to enhance understanding while saving time, making complex mathematics accessible to everyone.
Common Use Cases
Working on calculus homework? Switch the Scientific Calculator to Calculus mode to compute derivatives and integrals symbolically. Use derivative(x^3 + 2*x, x) to get 3*x^2 + 2, or integral(sin(x), x, 0, pi) to evaluate a definite integral. The calculator shows each step, so you can verify your work and understand the process, not just the final answer.
Solving a system of equations? The Equation Solver handles linear systems, quadratic equations, cubic equations, and higher-degree polynomials. Enter your equation and get both real and complex roots with step-by-step solutions. For transcendental equations like sin(x) = x that have no closed-form solution, the numerical solver uses Newton's method with a configurable initial guess.
Visualizing functions? The Graphing Calculator plots up to 6 functions simultaneously with different colors, so you can compare shapes, find intersection points, and identify roots visually. Zoom and pan to examine specific regions, and switch between degree and radian modes for trigonometric functions.
Working with matrices? The Matrix Calculator supports addition, subtraction, multiplication, determinant, inverse, and transpose for matrices up to 10x10. Each operation shows step-by-step work, making it a valuable learning tool for linear algebra students. The calculator also handles rectangular matrices for operations that do not require square inputs.
How to Use This Hub
Each tool in this category opens in its own page with a full-featured interface. You can pin any tool to the homepage so it appears first when you visit Solmint next time — just click the pin icon next to the tool name. You can also mark tools as favorites for quick access from the favorites dropdown in the navigation bar. Pins and favorites are saved on your device, so they persist across sessions without any account.
Every calculator on Solmint works the same way: enter your inputs, and the result updates instantly. There is no calculate button to press and no page reloads. Change any input and the output adjusts in real time. Most tools also offer a history panel that logs your past calculations, and you can click any history entry to reload its values. History is stored locally and is optional — you can clear it at any time or disable it entirely from settings.
Free, Private, and Always Available
Every tool in this category is completely free. There are no premium tiers, no locked features, and no usage limits. You do not need to create an account, sign in, or download an app. All calculators run directly in your browser on any device — phone, tablet, or desktop — and work offline once the page has loaded.
Your privacy is respected at every step. The values you enter into any calculator are processed locally in your browser and never sent to any server. Your calculation history is stored in your browser's local storage, not in a database. There are no tracking cookies, no analytics scripts profiling your activity, and no advertising networks watching what you do. What you calculate stays on your device.
Frequently Asked Questions
Which calculator should I use for my math problem?
Choose based on your need: Scientific Calculator for general mathematical operations and functions, Percentage Calculator for percentage-based calculations, Fraction Calculator for working with fractions, Geometry Calculator for shape measurements, Graphing Calculator for visualizing functions, Matrix Calculator for linear algebra, and Equation Solver for finding equation roots.
Do these calculators show step-by-step solutions?
Yes! The Fraction Calculator, Matrix Calculator, and Equation Solver provide detailed step-by-step solutions showing how the answer was derived. The Geometry Calculator shows the formulas used for each calculation, making it easy to understand and verify results.
Can I use different angle modes in trigonometric calculations?
Absolutely! The Scientific Calculator and Graphing Calculator support degrees, radians, and gradians. You can easily switch between modes depending on your preference or assignment requirements. The current mode is always clearly displayed.