To calculate a percentage, pick the question that matches yours and type the two numbers — the answer appears instantly. For example, 15% of 2,400 = 360; 1,000 + 18% GST = 1,180; ₹1,999 − 30% = ₹1,399.30.
How to use the Percentage Calculator
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1
Choose the calculation
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2
Enter two numbers
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3
Copy the answer
How it works
- X% of Y = X ÷ 100 × Y
- X is what % of Y = X ÷ Y × 100
- % change from X to Y = (Y − X) ÷ X × 100
- X is Y% of what = X ÷ (Y ÷ 100)
- Add Y% to X = X × (1 + Y ÷ 100); subtract = X × (1 − Y ÷ 100)
Features
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Six calculators on one page
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GST and discounts
Privacy and file handling
- Where it runs
- Runs in your browser
Runs entirely in your browser. Your files and text are not uploaded to our servers.
Frequently asked questions
How do I calculate percentage increase?
Subtract the old value from the new, divide by the old, and multiply by 100. From 1,200 to 1,500: (300 ÷ 1,200) × 100 = 25%.
How do I remove GST from a price?
Use “X is Y% of what”: if ₹1,180 includes 18% GST, enter 1,180 and 118 to get ₹1,000 before tax.
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