Math Tools
Quick calculators for fractions, triangles, percentages, statistics, randomness, and scientific math—built for clarity and speed.
Scientific Calculator
Keyboard-friendly calculator with sin, cos, tan, log/ln, exponents, parentheses, memory, and deg/rad.
Use ToolFraction Calculator
Add, subtract, multiply, divide & simplify fractions. Convert mixed ↔ improper and show decimal values.
Use ToolPercentage Calculator
Find x% of y, percent change (increase/decrease), and “what percent” comparisons with steps.
Use ToolRandom Number Generator
Generate N numbers in a range (unique or not), use seeds for repeatable results, plus dice/coin presets.
Use ToolTriangle Calculator
Solve any triangle from SSS/SAS/ASA/AAS/RHS; get sides, angles, area (Heron), height, and perimeter.
Use ToolStandard Deviation Calculator
Paste numbers to get mean, variance, population & sample standard deviation, and a quick summary table.
Use ToolMath Tools FAQ
Are results exact or rounded?
Most tools compute exactly and then show rounded outputs; where it matters, you can adjust rounding in the tool.
Can I paste data into statistics tools?
Yes—paste numbers separated by commas, spaces, or new lines. We’ll auto-clean common formatting.
Do trig tools use degrees or radians?
You can switch between deg and rad in the tool; we remember your last choice during the session.