CATEGORY
Math & Education Calculators
Free math calculators: fractions, GPA, percentage change, ratios and geometry.
From splitting a bill to grading a semester, math tools earn their keep by removing the moment of doubt. This section covers the classics — fractions, percentages, ratios, statistics and geometry — each with the formula displayed beside the answer, turning every calculation into a small lesson.
The goal is not just the number: it is understanding where the number came from, so next time you can sanity-check any result — including this one.
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Fraction Calculator
Add, subtract, multiply and divide fractions with step-by-step results.
02READY
GPA Calculator
Calculate your Grade Point Average (GPA) from grades and credit hours.
03READY
Percentage Increase / Decrease
Calculate the percentage change between two numbers (increase or decrease).
04READY
Ratio Calculator
Simplify ratios, compare and solve proportions instantly.
05READY
Geometry Calculator
Calculate area, perimeter and volume for common geometric shapes.
06READY
Scientific Calculator
Full scientific calculator: trigonometry, logarithms, powers, roots, π and e. Keyboard support and history.
07READY
Statistics Calculator
Compute mean, median, mode, range, variance and standard deviation from any list of numbers.
08READY
Aspect Ratio Calculator
Simplify any width and height to its aspect ratio (16:9, 4:3, 1:1) and find the missing dimension for a target ratio.