Math
A pocket maths department: fractions, primes, geometry, statistics and probability.
20 free math tools. Every tool runs in your browser, works without an account, and processes files locally whenever the browser allows it.
By the utils.sbs team · Reviewed November 2026
The shelf
All math tools
20 tools · updated for 2026
- Basic CalculatorAdd, subtract, multiply and divide quickly.
- Scientific CalculatorEvaluate functions, constants and expressions.
- Percentage CalculatorSolve the three common percentage questions.
- Fraction CalculatorOperate on fractions with simplified results.
- GCD & LCM CalculatorFind greatest common divisor and least common multiple.
- Prime CheckerTest primality and find nearby primes.
- Prime FactorizationFactor integers into primes.
- Factorial CalculatorCalculate n! for reasonably sized integers.
- Fibonacci CalculatorGenerate Fibonacci numbers up to n.
- Quadratic CalculatorSolve quadratic equations, including complex roots.
- Slope CalculatorFind slope, angle and line equation.
- Distance CalculatorCompute Euclidean distance between points.
- Midpoint CalculatorFind the midpoint of a line segment.
- Triangle Area CalculatorCalculate area from base and height or three sides.
- Circle Area CalculatorFind area, circumference and diameter.
- Sphere Volume CalculatorCalculate sphere volume and surface area.
- Cylinder Volume CalculatorCalculate cylinder volume and surface area.
- Statistics CalculatorMean, median, mode, range and standard deviation.
- Probability CalculatorBasic event and complement probability.
- Permutation & CombinationCompute nPr and nCr.
How this shelf works
About math tools
Math tools handle the small, repeatable jobs that show up between real work: formulas and geometry. They are built as focused utilities, so each page does one job without asking you to create an account or install software.
Open a tool, add your input, adjust the settings, and download the result. Processing happens in the browser using the platform APIs available for that file type. Files are not uploaded to a server, so the tool keeps working offline once the page has loaded.
Looking for something else? Browse the full tool index or search the catalogue from the homepage.
Math tool questions
Are math tools free?
Yes. Every math tool on utils.sbs is free, requires no account, and has no per-file or per-use charge.
Are my files uploaded when I use a math tool?
No. The tools are designed to process input in the browser whenever the platform API allows it. Files are not uploaded to a server for processing.
Do I need to install anything to use these tools?
No. Everything runs in a modern web browser. Open a tool page, use the workspace, and download the result.
How do I choose the right math tool?
Each tool page describes what it does, its input and output formats, the engine it uses, and its limitations. Start with the description that matches your job, then open the tool page for the workspace and step-by-step guide.