Percentage Calculator

What is the Free Percentage Calculator?

The free Percentage Calculator handles the three most common percentage problems in one tool. Calculate X% of Y (what is 15% of ₦80,000?), find X is what % of Y (₦12,000 is what % of ₦80,000?), or compute the percentage change from X to Y (how much did a price increase from ₦80,000 to ₦95,000?). Each calculation has its own input pair — fill in the two values and the answer appears instantly.

• → Find what a percentage of any amount is (e.g. 7.5% VAT on ₦50,000)
• → Calculate what percentage one number is of another for reports or comparisons
• → Find the percentage increase or decrease between two figures (price changes, growth rates)
• → Work out percentage scores — e.g. 42 correct out of 60 questions
• → Calculate commission, interest, or profit as a percentage of revenue

How to Use the Free Percentage Calculator

1. 1 Choose the calculation type that matches your problem — there are three rows:
2. 2 For X% of Y: enter the percentage in the first box and the base amount in the second. Result: the calculated amount.
3. 3 For X is what % of Y: enter the part value and the whole value. Result: the percentage.
4. 4 For % change from X to Y: enter the starting value and the ending value. Result: percentage increase (positive) or decrease (negative).
5. 5 All answers update instantly as you type in any field.

Key Features

• 🔢
  Three calculation modes

  Covers the three most common percentage problems in one screen.
• ⚡
  Instant answers

  Results update live as you type.
• 📈
  Increase & decrease

  The % change calculator handles both increases and decreases correctly.
• 🆓
  Free, no signup

  No account or subscription needed.

Example Usage

X% of Y: 15% of ₦80,000
What % is X of Y: ₦12,000 of ₦80,000
% change: ₦80,000 → ₦95,000

15% of ₦80,000 = ₦12,000
₦12,000 is 15% of ₦80,000
₦80,000 → ₦95,000 = +18.75% increase

Frequently Asked Questions about the Free Percentage Calculator

What is the free Percentage Calculator?

Calculate percentages, percentage change, and what percent one number is of another.

Is the Percentage Calculator free to use?

Yes, the Percentage Calculator is completely free. No account, subscription, or signup is required — ever.

Does my data get uploaded anywhere?

No. The Percentage Calculator runs entirely in your browser. Your data is never sent to any server.

Does it work offline?

Yes. Once the page has loaded, the tool works without an internet connection.

Which browsers are supported?

All modern browsers — Chrome, Firefox, Safari, and Edge. No plugins or extensions required.

How do I calculate a percentage increase?

Use the "% change from X to Y" section. Enter the original value as X and the new value as Y. The calculator shows the percentage change — positive for an increase, negative for a decrease. Formula: ((Y − X) / X) × 100.

What is the difference between percentage points and percentage?

A percentage point is the arithmetic difference between two percentages. If interest rates rise from 10% to 13%, that is a 3 percentage point increase, but a 30% relative increase. Percentage change (as calculated here) measures relative change; percentage points measure absolute difference between two rates.

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