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Education Tools

Free online education tools. GPA calculator, grade calculator, study planner, and more.

7 tools available

Companion Planting Calculator

Find the best plant companions for your garden. Optimize plant pairings for pest control, growth, and yield.

Calculate your GPA (Grade Point Average) instantly. Free online GPA calculator with letter grade and percentage options for students.

Calculate how much you'll remember based on the Ebbinghaus forgetting curve. Get optimal review schedules to maximize long-term memory retention.

Generate optimal review schedules based on the science of spaced repetition and memory retention.

Calculate specific heat capacity, heat energy, or temperature change. Essential for physics, chemistry, and engineering calculations.

Calculate test grades, scores, and letter grades instantly. Free online grade calculator with GPA conversion. Find what grade you got on any test.

Calculate your weighted GPA including AP, IB, and honors course bonuses. Perfect for high school and college students.