Online Weight Converter
Convert kilograms, pounds, ounces, stones, grams, and more instantly. 100% free, no signup, no uploads — works right in your browser.
All conversions happen locally in your browser. No data is sent to any server. No signup, no tracking, no storage.
Online Weight Converter: kg to lbs, g to oz, st to kg & More
Our online weight converter is a comprehensive, free tool that handles all your weight and mass conversion needs. Whether you're looking for an online weight converter to convert kilograms to pounds for a recipe, need to convert grams to ounces for cooking, or want to figure out your weight in stones, this tool provides instant, accurate results. No signup, no uploads, and 100% private — all calculations happen right in your browser.
Convert between kilograms, pounds, ounces, stones, grams, milligrams, metric tons, US/UK tons, carats, troy ounces, grains, and newtons.
Convert from any unit to any other. See all results simultaneously in the panel on the right — perfect for comparing measurements.
Uses standard conversion factors with up to 4 decimal places of precision, suitable for cooking, shipping, fitness, and science.
Your data never leaves your device. All processing is local — no uploads, no servers, no tracking, no signup required.
Works seamlessly on desktop, tablet, and mobile devices. No app to download — just open your browser and start converting.
Use the weight converter instantly. No registration, no email address, no payment — completely free.
How to Use This Free Online Weight Converter
1. Select the unit you are converting from using the first dropdown menu (Kilograms, Pounds, Ounces, etc.).
2. Enter a numeric value in the input field (e.g., 5, 2.5, 100).
3. (Optional) Choose a target unit if you want a specific conversion — the tool will still show all 13 results.
4. The results panel instantly displays the equivalent weight in all supported units.
5. Click the "Convert" button if you need to refresh after adjusting decimal precision.
Weight Conversion Formulas You Can Trust
Our tool uses exact, industry-standard conversion factors based on the kilogram (kg) as the base unit:
- 1 kg = 2.2046226218 lb (kilograms to pounds)
- 1 lb = 0.45359237 kg (pounds to kilograms)
- 1 kg = 35.27396195 oz (kilograms to ounces)
- 1 oz = 28.349523125 g (ounces to grams)
- 1 st = 14 lb = 6.35029318 kg (stones to kilograms)
- 1 metric ton = 1000 kg
- 1 US ton (short) = 907.18474 kg
- 1 UK ton (long) = 1016.0469088 kg
- 1 carat = 0.2 g (for precious stones)
- 1 troy oz = 31.1034768 g (for precious metals)
- 1 grain = 0.06479891 g
- 1 newton = 0.1019716213 kg (force at Earth's surface)
Perfect for Everyday & Professional Use
Our online weight converter is ideal for a wide range of scenarios:
- 🥘 Cooking & Baking — Convert grams to ounces or pounds to kilograms for international recipes.
- 🏋️ Fitness & Health — Convert your body weight from kilograms to pounds, or stones to kg.
- 📦 Shipping & Logistics — Convert between metric tons and US/UK tons for freight calculations.
- 💎 Jewelry — Convert carats to grams or grains for gemstones and precious metals.
- 🔬 Science & Engineering — Convert kilograms to newtons for force calculations.
- 🛒 Everyday Shopping — Understand weight measurements across different unit systems.
Frequently Asked Questions
Learn how to use this tool correctly by reading our step-by-step tutorial.
