Pounds to Kilograms Converter
Convert pounds to kilograms and 12+ weight units instantly. Free, accurate, and 100% private — no signup, no uploads.
All conversions happen locally in your browser. No data is sent to any server. No signup, no tracking, no storage.
Convert Pounds to Kilograms Instantly — Free & Accurate
Our pounds to kilograms converter is the fastest and easiest way to convert weight from lb to kg and back. Whether you're tracking body weight, calculating shipping costs, following a recipe, or doing homework, this tool gives you instant results with up to 4 decimal places of precision. It also supports ounces, stones, grams, metric tons, US/UK tons, carats, troy ounces, grains, and newtons — all in one place.
Optimized for lb → kg conversion with the exact formula: 1 lb = 0.45359237 kg.
Convert from any unit to any other. Switch seamlessly between all 13 units.
Uses the internationally recognized conversion factor with 4-decimal precision.
All calculations run locally in your browser — no uploads, no servers, no tracking.
Use the tool instantly. No registration, no email, no payment.
Responsive design works on desktop, tablet, and mobile.
How to Convert Pounds to Kilograms
1. Make sure "Pound (lb)" is selected in the "From" dropdown.
2. Enter the weight in pounds (e.g., 150, 200, 10.5).
3. The kilogram value will appear instantly in the results panel.
4. You can also reverse the conversion by selecting "Kilogram (kg)" in "From" and "Pound (lb)" in "To".
5. Use the "Convert" button to refresh results if needed.
Formula: Kilograms = Pounds × 0.45359237
For example: 150 lb × 0.45359237 = 68.0389 kg.
Complete Weight Conversion Formulas
Pounds (lb) to other units:
- To Kilograms: lb × 0.45359237 = kg
- To Grams: lb × 453.59237 = g
- To Ounces: lb × 16 = oz
- To Stones: lb ÷ 14 = st
- To US Tons: lb ÷ 2000 = short tn
- To UK Tons: lb ÷ 2240 = long tn
- To Metric Tons: lb × 0.00045359237 = t
- To Carats: lb × 2267.96185 = ct
- To Troy Ounces: lb × 14.58333333 = oz t
- To Grains: lb × 7000 = gr
- To Newtons: lb × 4.4482216152605 = N
Why Use Our lb to kg Converter?
- Fitness & Health: Track body weight in kilograms for medical charts and fitness goals.
- Shipping & Logistics: Convert package weights for international shipping requirements.
- Cooking & Recipes: Convert recipe ingredients from pounds to grams or kilograms.
- Science & Engineering: Convert measurements for physics, chemistry, and engineering problems.
- Travel: Check baggage weight limits in kilograms when flying internationally.
Frequently Asked Questions
Learn how to use this tool correctly by reading our step-by-step tutorial.
