Percentage Calculator
Calculate percentages, percentage change, and percentage values instantly. If your data needs tidying before you crunch the numbers, DataKit cleans up messy CSVs in minutes.
Calculate Percentage
Find what percentage one number is of another
The number you want to convert to a percentage
The total or whole amount
Result
Formula: (50 ÷ 200) × 100 = 25.00%
Enter your data to generate a share link
Example
If you scored 42 points out of 50 possible points on a test, your score is 84% (42 ÷ 50 × 100 = 84%).
Common Use Cases for Students
📝 Test Scores
Calculate what percentage you scored on a test (e.g., 42 out of 50 points)
📊 Grade Improvements
Track percentage change in your grades over time
🎯 Required Scores
Calculate how many points you need for a target percentage
📈 Class Statistics
Understand class averages and percentile rankings
How to Use This Calculator
- Calculate Percentage: Use when you want to know what percentage one number is of another (e.g., test scores)
- Calculate Value: Use when you want to find what a percentage equals (e.g., 20% discount on $100)
- Find Original Value: Use when you know a part and percentage, and need to find the whole (e.g., 15 is 30% of what?)
- Percentage Change: Use to calculate increase or decrease between two values (e.g., grade improvement)
- • All calculations update instantly as you type
- • Your inputs are automatically saved for when you return
- • Your calculations are automatically saved to your history (stored in your browser)
- • Use the share button to create a link to your results
💡 Student Tool: Need more student tools? RoutineKit helps you build routine charts for students and families. Visit RoutineKit →
⚠️ Important Disclaimer
Educational Tool Only: This calculator provides estimates for informational and educational purposes only. Results are mathematical calculations. Round as needed for your specific use case. Always verify calculations with your instructor, advisor, or school's official grading policies. Grade calculation methods may vary by institution. Consult with a qualified academic professional for advice specific to your situation.
No calculation history yet. Your calculations will be saved here automatically.
Frequently Asked Questions
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