Skip to content
🔧

Percentage Calculator

Text & Code · Free Online Tool

Calculate percentages, increases, and decreases.

By EZ4Code Team
1

What percent is X of Y?

X ÷ Y × 100

Result
12.5%
2

What is X% of Y?

X ÷ 100 × Y

Result
30
3

Percentage change from X to Y

(Y − X) ÷ X × 100

Result
+25%
Tip: leave a field empty to treat it as 0. Results update as you type.

Three Modes

Percent of, percent value, and percentage change — all in one place.

Live Results

Every result recalculates instantly as you edit the inputs.

Private

All math runs in your browser — no data ever leaves your device.

How to Use Percentage Calculator

  1. 1Enter or paste your text or code into the input area.
  2. 2Choose the desired operation (format, convert, analyze, etc.).
  3. 3Click the action button to process.
  4. 4Copy the result from the output area.

Features

  • ✓100% free — no signup, no subscription, no ads
  • ✓Runs entirely in your browser — data never leaves your device
  • ✓Fast and lightweight — instant results
  • ✓Cross-platform — works on desktop, tablet, and mobile

Frequently Asked Questions

Can I format code in different styles?

Yes, the SQL Formatter and other code tools support multiple formatting options and indentation styles.

Is regex testing case-sensitive?

The Regex Tester supports case-sensitive and case-insensitive matching, along with global and multiline flags.

Can I process multiple lines at once?

Yes. Most text tools operate on the whole input, so you can paste multi-line content and apply the operation to every line in a single pass.

Is there a character limit?

There is no fixed limit — the tools run in your browser, so the practical ceiling is your device memory. Very large inputs may slow down rendering.

Related Tools

ETA Calculator

Estimate completion time from progress and rate.

→

NATO Phonetic Alphabet

Convert text to NATO phonetic alphabet code words.

→

HTML/CSS/JS Minifier

Minify HTML, CSS and JavaScript by stripping comments and whitespace.

→

Regex Explainer

Break a regex into tokens and explain each part in plain English.

→

Bitwise Calculator

AND, OR, XOR, NOT, shifts and rotations on 8–64-bit integers.

→

Data URI Converter

Encode text to data URIs and decode data URLs back to text.

→

Text to Hex Converter

Convert text to hexadecimal representation.

→

Text to Octal Converter

Convert text to octal representation.

→