NouveauPopulaire
Calculatrice de pourcentage
Calculez rapidement les pourcentages — trouvez X% de Y, la variation en pourcentage entre deux valeurs et quel pourcentage A représente de B.
Trouver le pourcentage d'un nombre
Résultat
Saisissez des nombres pour calculer
Exemple : 15% de 200 → 30
How to Use This Tool
- 1
Choose a calculation mode
Select from three modes: find a percentage of a number, calculate percentage change between two values, or determine what percent one number is of another.
- 2
Enter your numbers
Type the values into the input fields. The labels change depending on the selected mode to guide you.
- 3
View the result instantly
The percentage result updates in real time as you type. No need to press a calculate button.
- 4
Copy to clipboard
Click the result to copy it to your clipboard for use in spreadsheets, documents, or other applications.
Frequently Asked Questions
- How do I calculate a percentage of a number?
- Select the 'Percent Of' mode, enter the base number and the percentage value. For example, to find 20% of 150, enter 150 and 20. The calculator instantly shows 30.
- What is percentage change and how is it calculated?
- Percentage change measures the relative difference between an old value and a new value. The formula is ((New − Old) / |Old|) × 100. A positive result means an increase, and a negative result means a decrease.
- Can I use decimal numbers?
- Yes, you can enter decimal numbers in both input fields. The calculator handles decimals with up to 4 digits of precision in the result.
- Is this percentage calculator free to use?
- Absolutely. This online percentage calculator is 100% free, requires no sign-up, and works entirely in your browser with no data sent to any server.