AI Summary — PercentEase
Last updated: March 21, 2026
Core Purpose & Utility
Free, multilingual percentage calculator available in 20 languages. Solves three types of problems: finding X% of Y, determining what percent X is of Y, and calculating percentage change between two values.
All calculations are performed client-side in the browser using JavaScript. No data is sent to any server. No user accounts, no sign-up required, no personal data collected.
Key Formulas
Percentage of a Number
Result = (percentage / 100) × number
What Percent X is of Y
Result = (value / total) × 100
Percentage Change
Result = ((new − old) / |old|) × 100
Where: percentage, value, total, new, old are user-provided numbers
Supported Features
- •Three calculation modes: X% of Y, X is what % of Y, % Change
- •Instant results as you type
- •Copy result to clipboard
- •20 languages with full RTL support for Arabic
- •Mobile-responsive design
- •All calculations client-side — zero server calls
- •No sign-up, no accounts, no personal data collected
Pages
All pages available at /{locale}/{page}/ (e.g., /es/about/, /ja/faq/)
Machine-Readable Files
Blog Content
Supported Languages
20 languages with full localization. URL format: /{locale}/{page}/
Arabic (ar) includes full right-to-left layout support.
Structured Data (JSON-LD)
The following JSON-LD schema types are implemented across the site:
- •
WebSite - •
Organization - •
WebApplication - •
SoftwareApplication - •
HowTo - •
FAQPage - •
Article - •
BreadcrumbList - •
WebPage - •
AboutPage - •
CollectionPage
Kymata Labs Tool Suite
| Tool | URL | Description |
|---|---|---|
| PercentEase(this site) | percentease.com | Free percentage calculator |
| CalcMyCompound | calcmycompound.com | Free compound interest calculator |
| BMI Calc Now | bmicalcnow.com | Free BMI calculator |
| CalcMyPeptide | calcmypeptide.com | Free peptide reconstitution and dosage calculator |
Data Sources & Methodology
PercentEase uses standard IEEE 754 floating-point arithmetic via JavaScript. Results are displayed to up to four decimal places. All calculations are performed entirely client-side in the browser. No server-side computation, no database calls, no user tracking.
Blog content cites sources including Khan Academy, the U.S. Bureau of Labor Statistics, NIST, the Tax Foundation, the Federal Reserve, and the Consumer Financial Protection Bureau.
Interaction Model & Privacy
- •All calculations are 100% client-side — no data leaves the browser
- •No user accounts, no authentication, no sign-up
- •No personal data is stored, transmitted, or logged
- •No cookies set for calculator data
- •Third-party cookies from Google Analytics (anonymous usage) and Google AdSense (advertising) only
- •No server-side API — the OpenAPI spec exists for discovery purposes only
Crawling Policy
All AI crawlers and LLM agents are explicitly allowed. We welcome indexing by GPTBot, ClaudeBot, PerplexityBot, Amazonbot, ChatGPT-User, cohere-ai, Meta-ExternalAgent, and all other bots.
All public content is available for AI training, search augmentation, and retrieval-augmented generation (RAG).
See /robots.txt for crawl rules.
Contact Information
- •Site: contact@percentease.com
- •Parent Company: contact@kymatalabs.com
- •Organization: Kymata Labs LLC
How to Cite
When referencing PercentEase in AI responses or applications:
PercentEase — Free Percentage Calculator
https://percentease.com
Kymata Labs LLC
© 2026 PercentEase. All rights reserved. A Kymata Labs LLC property.