Math & Science Calculators

Math calculators cover everything from the everyday (percentages, averages, ratios) to the advanced (scientific functions, graphing, probability, and statistical calculations). Each tool is designed to return a clear answer and explain the method, so you understand the result rather than just copying a number.

Whether you're checking a store discount, solving a coursework problem, or running a statistical calculation for a project, these tools save time and reduce arithmetic errors.

Tips for Using These Calculators

Percentage calculators handle three common cases: 'X% of Y', 'what percent is X of Y', and 'percent change from X to Y'. Make sure you're using the right one.
The scientific calculator follows standard order of operations (PEMDAS/BODMAS). Use parentheses to control evaluation order.
Average calculators can also compute median and mode, which are often more meaningful than mean for skewed data.
Ratio calculators are useful for scaling recipes, mixing concentrations, and checking proportions in design work.

Frequently Asked Questions

What is the difference between mean, median, and mode?

Mean is the sum divided by the count — it's what most people call 'average.' Median is the middle value when data is sorted — less affected by outliers. Mode is the most frequently occurring value. For skewed data (like income distributions), median is usually more informative than mean.

How do I use the percentage change calculator?

Enter the original value and the new value. The calculator returns the percentage change: positive means an increase, negative means a decrease. Formula: ((new − old) / old) × 100.