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Percentage Calculator

All percentage calculations in one place — basic %, increase/decrease, business and shopping calculators. All instant.

Free Instant 8 Calculators

① What is X% of Y?

Find a percentage of a number. E.g. what is 20% of 500?

% of
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② X is what % of Y?

Find what percentage one number is of another. E.g. 50 is what % of 200?

is what % of
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③ Add % to a value

Increase a number by a percentage. E.g. add 15% to 1000.

+
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④ Remove % from a value

Decrease a number by a percentage. E.g. remove 10% from 1000.

−
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📈 Percentage Increase / Decrease

Find the % change between an original and a new value. Shows both rise and fall.

From to
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⏪ Find Original Value

If a value increased by a known % to reach a final number, find the starting value.

Final after
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🏷️ Discount Calculator

Calculate the final price and savings after a percentage discount.

Price Discount
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💵 Tip Calculator

Calculate tip amount and total bill, optionally split between people.

Bill Tip
Split between people
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📊 Profit Margin & Markup Calculator

Enter cost price and selling price to find profit, profit margin (% of selling price) and markup (% of cost price). Useful for pricing products correctly.

Cost Price Selling Price
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📊 Open Full Profit Margin Calculator (with chart) →

📋 How to Use This Tool

  1. Step 1: Select the type of percentage calculation you need — percent of, increase/decrease, or difference.
  2. Step 2: Enter your values in the input fields provided.
  3. Step 3: Your percentage result appears instantly with a clear formula explanation.

⚡ Key Features & Benefits

  • All % Types: Percent of a number, percentage change, reverse percentage — all in one.
  • Formula Shown: See exactly how the answer was calculated.
  • Discount & Tip: Quickly calculate sale prices and restaurant tips.

❓ Frequently Asked Questions

What types of percentage calculations does it handle?

Percent of a number, percentage change (increase/decrease), and reverse percentage — all three in one tool, so you don't need separate calculators.

Does it show the formula, or just the answer?

It shows the formula used to reach the answer, so you can understand the calculation, not just copy a number.

Can I use it for discounts and restaurant tips?

Yes — it's built to quickly calculate sale prices and tip amounts, not just abstract percentages.

🔗 Quick Links
📚 View Documentation 📝 Read Blog Guide ✉️ Request a Custom Tool