Math Tools

Measure how spread out values are around the mean for classwork, reporting, and quick analysis.

Analyze a number list with basic descriptive statistics directly in the browser.

Calculate DTI percentage for mortgage prep, loan screening, and budgeting scenarios.

Work out an affordable rent target from gross monthly income and your preferred rent percentage.

Calculate room area, floor area, wall sections, and simple rectangular spaces in square feet or square meters.

Calculate triangle area for geometry homework, design layouts, construction sketches, and classroom examples.

Calculate right-triangle hypotenuse length for geometry, construction checks, classroom work, and layout planning.

Calculate average speed for running, cycling, driving, travel planning, workouts, and school math problems.

Calculate increase or decrease percentages for prices, traffic, sales, grades, and before-versus-after comparisons.

Estimate fuel used and trip cost for commuting, road trips, delivery routes, and driving budget checks.