Multi-Mode Percentage Calculator

Solve any common percentage problem with our versatile, 3-in-1 calculator. Whether you need to find a percentage of a number, calculate what percentage one number is of another, or determine a percentage increase or decrease, this tool provides instant and accurate results through a unique and interactive keypad interface.

How It Works

Our calculator is designed for a fast, touch-friendly experience, with all calculations happening in real-time.

  1. Select a Calculation Mode: Choose one of the three percentage calculation types using the tabs at the top.
  2. Activate an Input Field: Click on the input box you want to edit. It will become highlighted.
  3. Enter Your Numbers: Use the on-screen keypad or your physical keyboard to enter your values.
  4. View the Instant Result: The answer is calculated and displayed at the bottom of the calculator as you type.

Key Features

  • Three Calculators in One: Seamlessly switch between three essential percentage calculation modes:
    • What is P% of V? — Quickly find the percentage of a given number (e.g., What is 20% of 150?).
    • A is what % of B? — Easily calculate what percentage one number represents of another (e.g., 30 is what percent of 150?).
    • Percent Change: Determine the percentage increase or decrease from an original value to a new value.
  • Interactive Keypad Interface: A central keypad allows for quick and easy number entry, perfect for both mobile and desktop use. Simply select a field and start typing.
  • Dynamic Change Indicator: When calculating percentage change, the result is accompanied by a colored up or down arrow, instantly showing whether the change was an increase or a decrease.
  • Real-Time Calculations: There's no need to press an "equals" button. The result updates instantly with every digit you enter.
  • Full Keyboard Support: In addition to the on-screen keypad, you can use your computer's keyboard for fast and efficient data entry.
  • Smart Number Formatting: The calculator automatically formats large and small numbers for readability, using exponential notation where necessary.

How to Use the Calculator

  1. Step 1: Select Your Mode
    Click on the tab that matches the problem you want to solve (e.g., "Percent Change").
  2. Step 2: Activate and Enter Data
    Click on an input box to make it active. For example, in "Percent Change" mode, click the "From" box to enter the starting value, then click the "To" box to enter the ending value.
  3. Step 3: Use the Keypad
    Use the keypad or your physical keyboard to type the numbers. Use the "C" key to clear the active field and the "⌫" key for backspace.
  4. Step 4: Read the Instant Result
    The answer is always live at the bottom of the calculator.

Find Our Tool

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