Weight & Mass Converter
Free Weight Converter, Convert Kilograms, Pounds, Ounces, Stone & Grams Instantly
Convert weight and mass between any units instantly with OmniConverter's free weight converter. 1 kilogram equals 2.205 pounds, 1 pound equals 16 ounces, and 1 stone equals 6.35 kilograms. Supports kilograms, pounds, grams, ounces, stone, metric tons, and milligrams. Whether you're tracking your body weight, calculating shipping costs, or adapting a recipe, our converter delivers precise, instant results.
How It Works
Convert in three simple steps.
Enter Your Weight or Mass Value
Input the numeric value you want to convert into the Input Value field. For example, enter 150 to convert 150 pounds.
Select Source and Target Weight Units
Pick your input unit from the left dropdown (e.g., pounds, kilograms, ounces, grams, stones) and choose the output unit from the right dropdown (e.g., kilograms, lbs, metric tons).
View Your Converted Weight Instantly
The precise converted weight appears in real time. Perfect for fitness tracking, cooking recipes, shipping calculations, or international travel where weight units differ.
Popular Weight & Mass Conversions
Common Benchmarks
Reference
1 kg → kg
1 kg
Reference
1 kg → g
1000 g
Reference
1 kg → mg
1000000 mg
Reference
1 kg → t
0.001 t
Reference
1 kg → lb
2.2046244202 lb
Reference
1 kg → oz
35.2739907229 oz
Reference
1 kg → st
0.1574731233 st
Real-World Use Cases
Weight conversion is used in fitness and health tracking (converting body weight between kg and lbs), cooking and baking (adapting recipes from US to metric measurements), international shipping and freight (calculating parcel weights for couriers), scientific research and laboratory work, agriculture (measuring crop yields in tonnes vs tons), and jewelry making (converting between grams and ounces).
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Get Embed CodeFrequently asked questions
Quick answers to common conversion questions
How do I convert kilograms to pounds?+
Multiply kilograms by 2.20462262185 to get pounds. One kilogram is approximately 2.205 pounds.
How many grams are in an ounce?+
One avoirdupois ounce equals 28.349523125 grams. Multiply ounces by 28.35 for quick estimates.
What is a stone in weight measurement?+
One stone equals 14 pounds or about 6.35029 kilograms, commonly used in the UK.
How do I convert pounds to kilograms?+
Divide pounds by 2.20462262185 to get kilograms.
What is the difference between mass and weight?+
Mass is the amount of matter, while weight is the force exerted by gravity on that mass.
How do I convert metric tons to pounds?+
Multiply metric tons by 2,204.62 to estimate pounds.
Are ounces and grams exact?+
They are standardized units, but the common ounce used in everyday measurements is the avoirdupois ounce.
Can I convert milligrams to grams easily?+
Divide milligrams by 1,000 to get grams.
Why are stone and pounds used together?+
Stone is still used in some countries for body weight, while pounds are the smaller unit in the same system.
Does the converter apply rounding?+
Values are rounded for display, but the internal calculation uses the exact conversion factor.
Latest Blog Posts
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