Free Online Calculators
Math Solvers
Precise, free tools for algebra, matrices, calculus, complex numbers, and more — with step-by-step solutions, all running privately in your browser.
Available now
Click to open the calculator instantly in your browser.
Solve linear equations, quadratic equations, and systems of equations with full step-by-step working shown. Enter any equation using standard notation — supports fractions, exponents, and parentheses. Also includes a System Solver tab for solving two-variable simultaneous equations. All calculations run in your browser; no expression is sent to a server.
Open calculatorQuickly solve systems of linear and non-linear equations with detailed, step-by-step explanations. Choose between the Gauss–Jordan Elimination and Cramer’s Rule solving methods to match your learning or coursework requirements. The intuitive interface makes it easy to solve systems with two or three variables in seconds. Every calculation runs entirely in your browser, delivering fast, accurate results while keeping your data completely private.
Open calculatorComing soon
More powerful math tools are actively being built. Here’s what’s on the roadmap.
Add, subtract, multiply matrices. Find determinants, inverses, and transpose. Supports 2×2 up to 5×5 matrices with step-by-step working.
Add, subtract, multiply and divide complex numbers in rectangular and polar form. Plots on an Argand diagram with modulus and argument.
Differentiate any function with step-by-step rules shown — power rule, chain rule, product rule, quotient rule. Supports trig, log, and exponential functions.
Compute definite and indefinite integrals with full antiderivative steps. Supports substitution, integration by parts, and standard identities.
Find real and complex roots of ax² + bx + c = 0 using the quadratic formula with discriminant analysis and parabola visualisation.
Compute sin, cos, tan and their inverses in degrees or radians. Unit circle visualisation, triangle solver, and trig identity reference.
Evaluate limits as x approaches a value or infinity. Handles indeterminate forms, L’Hôpital’s rule, and one-sided limits with full working.
Calculate mean, median, mode, standard deviation, variance, and more from a data set. Includes normal distribution visualisation and z-score lookup.
Who uses these math solvers?
From high school classrooms to university labs and professional work.
Students
Verify homework, check working step-by-step, and build intuition across algebra, calculus, and statistics.
Teachers
Generate worked examples, demonstrate solution methods in class, and cross-check student answers instantly.
Engineers
Solve systems of equations, compute matrix operations, and evaluate calculus expressions on the go.
Researchers
Quick numerical verification of statistical distributions, complex number operations, and integral bounds.
Exam Prep
Practice solving problems under exam conditions and instantly confirm whether your method is correct.
Frequently asked questions
Does the Algebra Solver show step-by-step working?
Yes — every solution is shown with full intermediate steps so you can follow the logic rather than just seeing the final answer. For linear equations this includes expanding brackets, collecting like terms, and isolating the variable. For systems of equations the substitution or elimination method is shown in full.
What types of equations can the Algebra Solver handle?
The Algebra Solver handles linear equations (one variable), quadratic equations, and two-variable systems of equations. It supports fractions, decimal coefficients, nested parentheses, and integer exponents. More advanced equation types — including polynomial, exponential, and trigonometric equations — will be covered by tools currently in development.
Are the calculations private? Is my data sent anywhere?
All calculations run entirely in your browser. No equation, expression, or result is ever sent to PreciseCalcs or any third-party server. This is particularly important for academic work and exam preparation where you may not want your problem-solving activity tracked.
When will the Matrix and Calculus calculators be available?
The Matrix Calculator is next in the development roadmap, followed by the Derivative and Integral Calculators. All upcoming tools will follow the same step-by-step, browser-only approach as the Algebra Solver. Visit the blog or check back on this page for release announcements.
Can I use these tools on a phone during class or an exam?
Yes — all tools are fully mobile-responsive and load fast with no app installation required. They work in any modern browser on phone, tablet, or desktop. Whether you’re allowed to use them in your exam is determined by your institution’s exam rules — always check those first.
Need a different type of calculator?
PreciseCalcs also covers construction, time & date, food & kitchen, science & lab, developer tools, and file converters — all free, no sign-up required.