Education Tools

Full-featured scientific calculator with trigonometric, logarithmic, exponential functions, memory operations, and calculation history

Calculate percentage of any number, find what percent one number is of another, percentage increase/decrease, and percentage difference with real-time results

Calculate grade point average from grades. Support multiple GPA scales (4.0, 5.0, 10.0), letter grade to GPA conversion, weighted/unweighted GPA, semester GPA and cumulative GPA tracking

Calculate final grade based on assignments and weights. Support multiple assignment categories (homework, quizzes, tests, final exam) with custom weights, show current grade and what's needed on remaining assignments

Calculate with fractions - add subtract multiply divide. Support all operations with automatic simplification to lowest terms, mixed number support, decimal conversion, and step-by-step solution display

Calculate standard deviation and variance. Support both population and sample statistics, paste data from Excel/CSV, show mean, median, variance, standard deviation, and complete statistical analysis

Calculate cumulative college GPA across multiple semesters. Track overall GPA, major GPA, and institutional GPA separately. Supports transfer credits, honors eligibility checking, and semester-by-semester breakdown

Calculate what score you need on your final exam to achieve your target grade. Enter your current grade, final exam weight, and desired grade to instantly see the required final exam score with achievability status

Transform text into study materials instantly. Paste your lecture notes or textbook chapters and get key points, short notes, summary, and exam questions. Perfect for students preparing for exams.

Calculate circle area, circumference, radius, and diameter from any one known value. Also computes arc length, sector area, and chord length for a given central angle.

Calculate powers and exponents with support for negative and fractional exponents. Shows step-by-step working, reciprocal form, and root equivalents.

Calculate central tendency measures — mean, median, mode, and range — for any set of numbers, with frequency distribution.

Calculate probabilities for events — shows fraction, decimal, percentage, complement, and odds. Supports single events and two independent events (AND/OR).

Solve proportions and cross-multiplication problems. Find the missing value in a/b = c/d with step-by-step solutions.

Calculate any side of a right triangle using the Pythagorean theorem (a² + b² = c²). Find the hypotenuse or either leg instantly with formula visualization and triangle diagram.

Calculate and simplify ratios to lowest terms. Find GCD, decimal ratios, percentages, and generate equivalent ratios instantly.

Calculate rectangle area, perimeter, and diagonal length from length and width. Instantly see aspect ratio with a visual diagram.

Calculate the square root of any number. Instantly shows the result, perfect square check, simplified radical form, and cube root.

Calculate recommended study hours for exams based on material volume, difficulty level, and available time. Get a personalized daily study schedule.

Calculate triangle area, perimeter, all angles and sides from any valid combination of known values. Supports SSS, SAS, ASA, and AAS input modes.

Calculate words per page for different formats. Convert between word count and page count based on font size, line spacing, and page size.

Solve quadratic equations ax²+bx+c=0 instantly. Get real and complex roots, discriminant, vertex, graph visualization, and step-by-step solutions. Perfect for students, teachers, and professionals.

Calculate your test score percentage and letter grade from points earned. Instantly see your grade, points missed, and how many more points you needed for the next grade up.