Tools for students and teachers: grade conversions and GPA.
- Grade Converter: Out of 20, 10, 100 and Percent
- GPA Calculator (4.0 Scale)
- Long Addition and Subtraction Calculator
- Long Multiplication Calculator
- Ordering Fractions Calculator
- Average of Fractions Calculator
- Multiples Calculator
- Lattice Multiplication Calculator
- Age Word Problem Solver
- Coin Word Problem Solver
- French Baccalaureate Grade Calculator (Bac 2027)
- French Brevet Grade Calculator
About these calculators
Calculators for school and university: grade averages, weighted averages, GPA, grade conversions and step-by-step written methods for addition, multiplication and division. Pupils, parents and teachers can check work and understand each step.
Every tool is free, works on phone and computer, needs no sign-up and runs in your browser: what you type is not sent to a server. Each page explains the formula, gives a worked example and answers common questions.
Some tools in this category: Grade Converter: Out of 20, 10, 100 and Percent, GPA Calculator (4.0 Scale), Long Addition and Subtraction Calculator, Long Multiplication Calculator, Ordering Fractions Calculator.
Tips for accurate results
- Enter marks and coefficients in the same order.
- Check the official rules of your school or exam.
- Use the step-by-step tools to learn the method, not just the answer.