Mathematical calculators for scientific calculations and more
Calculate percentages, percentage increase/decrease, and percentage of a number with our free percentage calculator.
Advanced scientific calculator with trigonometric functions, logarithms, exponentials, and more. Perfect for students and professionals.
Convert between different units of length, weight, temperature, volume, and area. Free online unit converter for everyday conversions and calculations.
Math calculators cover everyday arithmetic, percentages, and unit conversions, as well as more advanced scientific and algebraic operations. They are useful for homework, quick checks, and real-world problems in work or daily life.
Percentages appear everywhere: discounts, tax, tips, and statistics. Our percentage calculator handles basic percentage of a number, percentage increase and decrease, and "what percent is X of Y?" style questions. Related tools include our discount calculator for sale prices and our tip calculator for splitting bills.
For trigonometry, logarithms, powers, and other functions, our scientific calculator provides a full set of operations. When you need to convert between units—length, weight, volume, temperature, or others—our unit converter supports many common systems (metric, imperial, etc.) so you can get consistent results for recipes, travel, or coursework.
All math tools are designed to give accurate results for the given inputs. For high-stakes or official use, always verify with your own checks or with an authority (e.g., teacher, examiner). These calculators are meant to support learning and productivity, not to replace understanding of the underlying math.