Percentage Calculator

Calculate percentages, increase or decrease values by a percentage. Perfect for calculating discounts, tips, tax, or any percentage-based calculations. All processing happens locally in your browser.

Choose a Calculator

Select a percentage calculation mode

Find Percentage

Calculate what percentage a number is of another number

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Increase by %

Increase a value by a certain percentage

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Decrease by %

Decrease a value by a certain percentage

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% Difference

Calculate the percentage change between two values

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How to use the percentage calculators

Four calculators, each for a different percentage question. Pick the one that matches what you're trying to find out.

01
Pick the right calculator for your question
There are four: Find Percentage (what % is X of Y?), Increase by % (what's 120 after a 15% raise?), Decrease by % (what's 80 after a 25% discount?), and % Difference (how much did it change between two values?).
02
Enter your numbers
Fill in the fields — results update as you type. Each calculator shows the formula it used so you can verify the logic.

Frequently asked questions

Free, no account needed.

(X / Y) × 100. So 45 out of 60: (45 / 60) × 100 = 75%.

New value = original × (1 + percentage / 100). A salary of ₹50,000 with a 12% raise: ₹50,000 × 1.12 = ₹56,000.

((new − old) / old) × 100. Revenue went from ₹80,000 to ₹95,000: ((95,000 − 80,000) / 80,000) × 100 = 18.75% increase.

Percentage change has a direction — it measures how much one value changed from another. Percentage difference is symmetric — it measures how far apart two values are without implying which came first.

Nothing is sent anywhere. Runs in your browser.

Yes, on any modern phone or tablet browser.

Related calculators

Discount Calculator

Final price and savings after a percentage discount.

GST Calculator

Add or remove GST from any price across all Indian slabs.

EMI Calculator

Monthly EMI, total interest, and full amortization schedule.

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How to use the percentage calculators

Four calculators, each for a different percentage question. Pick the one that matches what you're trying to find out.

Pick the right calculator for your question

There are four: Find Percentage (what % is X of Y?), Increase by % (what's 120 after a 15% raise?), Decrease by % (what's 80 after a 25% discount?), and % Difference (how much did it change between two values?).

Enter your numbers

Fill in the fields — results update as you type. Each calculator shows the formula it used so you can verify the logic.

Frequently asked questions

Free, no account needed.

(X / Y) × 100. So 45 out of 60: (45 / 60) × 100 = 75%.

New value = original × (1 + percentage / 100). A salary of ₹50,000 with a 12% raise: ₹50,000 × 1.12 = ₹56,000.

((new − old) / old) × 100. Revenue went from ₹80,000 to ₹95,000: ((95,000 − 80,000) / 80,000) × 100 = 18.75% increase.

Nothing is sent anywhere. Runs in your browser.

Yes, on any modern phone or tablet browser.