Percentage Calculator

Solve all your percentage problems with four powerful modes: find X% of Y, X is what % of Y, percentage change, and add/subtract percentage.

%
30
15% of 200 = 30
Formula: X% × Y = (15 ÷ 100) × 200 = 30
15%
30 is 15% of 200
Formula: (X ÷ Y) × 100 = (30 ÷ 200) × 100 = 15%
+50%
Increase from 100 to 150
Formula: ((150 - 100) ÷ 100) × 100 = +50%
%
220
200 + 10% = 220
Formula: 200 + (10% × 200) = 200 + 20 = 220

About TooliFyra Percentage Calculator Online Free

TooliFyra's Percentage Calculator Online Free is a versatile 4-in-1 tool that handles all common percentage calculations. Whether you need to find a percentage of a number, determine what percentage one number is of another, calculate percentage change, or add/subtract a percentage, this percentage calculator online free has you covered.

Each mode provides the formula alongside the result, making it not just a calculator but also a learning tool. All calculations update in real-time as you type.

Key Features

4 Calculation ModesX% of Y, X is what % of Y, % Change, Add/Subtract %.
Formula DisplaySee the mathematical formula behind each calculation.
Color-Coded ResultsIncrease (green) and decrease (red) indicators.

How to Use Percentage Calculator

  1. Click on the tab for your desired calculation mode.
  2. Enter the required values in the input fields.
  3. The result appears instantly with the formula explanation.
  4. For Add/Subtract mode, click the respective button to choose operation.

Benefits

Shoppers can calculate discounts and students can solve math problems instantly. The percentage calculator online free runs entirely in your browser — no data is ever sent to a server.

Use Cases

Shoppers — calculate discounts and sale prices. Students — solve percentage math problems with formula display. Business Professionals — compute growth rates and percentage changes.

Why TooliFyra?

TooliFyra's Percentage Calculator Online Free covers every common percentage scenario with clear formula display — completely free and private with no sign-up required.

Frequently Asked Questions

Multiply Y by X and divide by 100. For example, 15% of 200 = (15 × 200) ÷ 100 = 30.

((New - Original) ÷ Original) × 100. Positive result = increase, negative = decrease.

Add: Value + (Value × P%). Subtract: Value - (Value × P%).

Yes, completely free with no usage limits. All calculations happen in your browser.