Grade Calculator
Calculate final grade needed to achieve target grade, current grade from assignments, weighted grade, and grade percentage with step-by-step solutions.
Input
Result
Visualization
Step-by-Step Solution
Calculate Your Grade
Select a calculation type and enter values to see results with detailed step-by-step solutions.
Complete User Guide
What is Grade Calculator?
The Grade Calculator is a comprehensive tool for students to calculate various grade-related metrics. It helps you determine what grade you need on a final exam to achieve your target grade, calculate your current grade from completed assignments, compute weighted grades, and convert percentages to letter grades. This calculator is essential for academic planning and goal setting.
How to Use This Calculator
- Select a calculation type from the dropdown (Final Grade Needed, Current Grade, Grade Percentage, Weighted Grade, or Convert to Letter Grade).
- Enter the required values in the input form.
- For assignment-based calculations, add assignments using the 'Add Assignment' button.
- Click 'Calculate' to see the results.
- Review the detailed results, visualizations, and step-by-step solution.
Calculation Types
Final Grade Needed
Calculate what grade you need on a final exam/assignment to achieve your target overall grade. Enter current grade, target grade, and final weight.
Current Grade
Calculate your current grade from completed assignments. Supports both weighted and unweighted calculations.
Grade Percentage
Calculate grade percentage from points earned and points possible. Formula: (Points Earned / Points Possible) × 100.
Weighted Grade
Calculate weighted average grade from multiple assignments with different weights. Formula: Σ(Grade × Weight) / Total Weight.
Convert to Letter Grade
Convert percentage grade to letter grade using standard thresholds (A+, A, A-, B+, B, B-, C+, C, C-, D+, D, D-, F).
Key Grade Formulas
Final Grade Needed:
Final Grade = (Target - Current × (1 - Final Weight)) / Final Weight
Current Grade (Unweighted):
Grade = (Total Points Earned / Total Points Possible) × 100
Weighted Grade:
Weighted Grade = Σ(Grade × Weight) / Total Weight
Grade Percentage:
Percentage = (Points Earned / Points Possible) × 100
Letter Grade Thresholds
| Letter Grade | Percentage Range |
|---|---|
| A+ | 97-100% |
| A | 93-96% |
| A- | 90-92% |
| B+ | 87-89% |
| B | 83-86% |
| B- | 80-82% |
| C+ | 77-79% |
| C | 73-76% |
| C- | 70-72% |
| D+ | 67-69% |
| D | 63-66% |
| D- | 60-62% |
| F | 0-59% |
Important Notes
- All grade percentages must be between 0 and 100.
- Final weight must be between 0% and 100% (exclusive).
- Points earned cannot exceed points possible.
- For weighted grades, total weight should not exceed 100%.
- If final grade needed exceeds 100%, the target grade is not achievable.
- Current grade calculations support both weighted and unweighted assignments.
- Letter grade thresholds may vary slightly between institutions.
- Results are displayed with step-by-step solutions showing the calculation process.
Common Applications
- Planning final exam preparation
- Tracking current academic performance
- Calculating weighted course grades
- Determining grade needed for scholarship eligibility
- Converting points to percentage grades
- Understanding letter grade equivalents
- Academic goal setting and planning