DEV Community: Vikas Gupta

# I Built a Telegram Bot That Instantly Converts Units Without Opening a Website

Vikas Gupta — Sat, 13 Jun 2026 10:24:12 +0000

When working online, I often needed quick conversions such as:

10 kg to lbs
100°C to °F
5 liters to gallons
25 cm to inches

The problem was that every conversion required opening a browser, searching Google, and finding a converter tool.

To make the process faster, I created the BestMetricConversion Telegram Bot.

👉 Telegram Bot: https://t.me/BestMetricConversion_Site_Bot

The bot allows users to perform unit conversions directly inside Telegram. Simply send a conversion query and get instant results.

What Can It Convert?

The bot supports a wide range of conversions including:

Weight (KG, LBS, Grams, Ounces)
Length (CM, Inches, Feet, Meters)
Volume (Liters, Gallons, ML)
Temperature (Celsius, Fahrenheit, Kelvin)
Pressure
Speed
Data Storage
Time Units
And many more

Why I Built It

While building BestMetricConversion, I realized many users only need a quick answer. They don't always want to open a website or navigate multiple pages.

Telegram is already used daily by millions of people, making it a perfect place for quick conversions.

More Than Just a Telegram Bot

The Telegram bot is part of a larger ecosystem called BestMetricConversion.

Website:
https://bestmetricconversion.com

The platform includes:

1000+ conversion tools
Conversion tables
Voice command support
Conversion chatbox
Browser extensions
PDF conversion creator
Related conversion suggestions
Educational conversion guides

Example Usage

Try sending:

10 kg to lbs
100 c to f
5 liters to gallons
50 cm to inches

and the bot will return the conversion instantly.

What's Next?

I'm continuously improving both the Telegram bot and the BestMetricConversion platform with new conversion categories, smarter parsing, and better user experience.

If you frequently work with measurements, calculations, or unit conversions, I'd love your feedback.

🔗 Website: https://bestmetricconversion.com

🤖 Telegram Bot: https://t.me/BestMetricConversion_Site_Bot

# Stop Opening Multiple Tabs for Conversions — I Built a Browser Extension That Does It All 🚀

Vikas Gupta — Wed, 10 Jun 2026 06:43:52 +0000

How many times have you searched for over the Google, ChatGPT or many other way:

KG to LBS
CM to Inches
Celsius to Fahrenheit
Liters to Gallons
USD to INR

I found myself doing this multiple times every day by searching over the Google.

Each conversion meant opening a new tab, searching Google, entering a value, and copying the result which is too much time consuming and burning lots of hours.

So I built a browser extension that puts unit conversion and currency conversion directly inside the browser and you can use it on same tab as it's sidepanel extension where you don't need to lose your current tab.

No extra tabs. No searching. Just click the extension and convert instantly.

✨ What the Extension Does

The extension combines multiple conversion categories into one simple tool:

⚖️ Weight Conversion

Kilograms ↔ Pounds
Grams ↔ Milligrams
Ounces ↔ Pounds
Tons ↔ Kilograms

📏 Length Conversion

Inches ↔ Centimeters
Feet ↔ Meters
Miles ↔ Kilometers
Millimeters ↔ Inches

🌡️ Temperature Conversion

Celsius ↔ Fahrenheit
Celsius ↔ Kelvin
Fahrenheit ↔ Kelvin

🥤 Volume Conversion

Liters ↔ Gallons
Milliliters ↔ Liters
Cups ↔ Fluid Ounces

💾 Data Storage Conversion

Bytes
KB
MB
GB
TB

💱 Currency Conversion

Need to quickly convert currencies?

Simply enter an amount, choose the currencies, and get the converted result instantly from within the extension.

⚡ Built for Speed

One thing I wanted to avoid was unnecessary clicks.

The extension provides:

✅ Instant calculations

✅ Quick unit swapping

✅ Clean and distraction-free interface

✅ Fast access from the browser toolbar

Instead of searching for a converter website every time, everything is available in one place.

🎯 Who Is This Extension For?

Students

Quickly convert measurements while studying science, mathematics, engineering, or research topics.

Developers

Useful when working with dimensions, storage units, pixels, and technical measurements.

Travelers

Check measurements and currency values without opening multiple websites.

Online Sellers

Convert product weights and dimensions for international marketplaces.

Everyday Users

Whether you're cooking, exercising, shopping, or planning a trip, conversions are always just one click away.

💡 Why I Built It

There are already many converter websites available.

The problem wasn't finding a converter.

The problem was constantly leaving what I was doing just to perform a simple conversion.

I wanted a lightweight tool that stayed available inside the browser whenever I needed it.

This extension solves exactly that problem.

🔗 Try the Extension

If you regularly work with measurements, currencies, or international data, give it a try and let me know what features you'd like to see next.

Extension Link: https://chromewebstore.google.com/detail/best-metric-conversion-si/kefihbhfkinpffliggmmidflcnhebpop

Feedback and suggestions are always welcome!

How I Built a Lightweight Kg to Lbs Converter Firefox Extension

Vikas Gupta — Sun, 17 May 2026 17:06:59 +0000

Well, In this project, I wanted to create a very lightweight and fast Firefox extension focused on one simple task: converting kilograms to pounds instantly.

Instead of building a heavy extension with unnecessary permissions and complex UI elements, I focused on:

Speed
Simplicity
Minimal design
Fast calculations
Easy accessibility
Why I Built It

Many conversion tools online are overloaded with ads, slow scripts, or complicated interfaces. I wanted something that opens quickly and provides instant conversion results without distractions.

Tech Stack
HTML
CSS
JavaScript
Firefox Extension APIs
Manifest V3
Features
Instant Kg ↔ Lbs conversion
Lightweight popup UI
Fast loading
Beginner-friendly interface
Responsive design
Minimal permissions
Challenges I Faced

One of the biggest challenges was keeping the extension lightweight while still making the UI modern and user-friendly.

I also spent time optimizing:

popup performance
layout responsiveness
extension packaging
cross-browser compatibility
What I Learned

Building browser extensions taught me a lot about:

UI simplicity
browser APIs
performance optimization
extension store policies
user-focused design
Future Improvements

I’m currently exploring:

better accessibility
offline support
history saving
multi-unit conversion support

Firefox Extension:

KG to LBS Converter & PDF Generator – Get this Extension for 🦊 Firefox (en-US)

Download KG to LBS Converter & PDF Generator for Firefox. A fast KG to LBS Firefox sidebar converter with chatbot, history, install page and uninstall feedback.

addons.mozilla.org

I’d love feedback and suggestions from the developer community.