Weight Converter
Convert between 30+ weight and mass units instantly with support for metric and imperial systems
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Convert Weight & Mass Instantly
The fastest, most accurate way to convert between 60+ weight and mass units. From kilograms to pounds, grams to ounces, and everything in between.
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FEATURES
Everything You Need for Weight Conversion
A powerful, feature-rich converter built for professionals, students, and anyone who works with weight and mass measurements.
Highly Accurate
Precision conversions using official scientific conversion factors. Results you can trust for any application.
Instant Results
Get conversion results instantly as you type. No waiting, no loading - real-time conversions.
60+ Units
From metric to imperial, troy to scientific units - we support all major weight and mass units.
100% Free
No registration, no limits, no hidden fees. Always free to use without any restrictions.
Bidirectional Conversion
Convert in any direction with a single click. Swap units instantly to reverse your conversion.
Conversion Formulas
See the exact formula used for each conversion. Learn how the math works behind the scenes.
Conversion Tables
Quick reference tables for common values. See multiple conversions at a glance.
Scientific Units
Support for scientific units like atomic mass units, electron mass, and Planck mass.
Easy Reference
Bookmark any conversion page for quick access. Share conversion links with others.
HOW IT WORKS
Convert Weight in 3 Easy Steps
No complicated setup, no account required. Just enter, select, and get your result.
01
Enter Your Value
Simply type the value you want to convert. The converter accepts any positive number including decimals.
02
Select Units
Choose your source and target units from our comprehensive list of 60+ weight and mass units.
03
Get Your Result
Instantly see your converted value with the exact formula used. Copy or share the result easily.
Results in milliseconds
Use Cases
See how professionals use our weight converter in their daily work
Shipping & Logistics
Calculate package weights for international shipping. Convert between metric and imperial systems.
Scientific Research
Precise conversions for laboratory work, chemistry calculations, and physics experiments.
Cooking & Baking
Convert recipe measurements between different unit systems for international recipes.
Jewelry & Precious Metals
Convert between troy ounces, grams, and carats for gold, silver, and gemstones.
Fitness & Health
Track body weight and workout loads across different measurement systems.
Industrial & Manufacturing
Calculate material weights for production, construction, and engineering projects.
Converter Tool
Convert Weight Units
Convert between 30+ weight and mass units instantly with support for metric and imperial systems
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Weight Converter
v0.1.41Weight Converter
Convert between 30+ weight and mass units instantly with support for metric and imperial systems
- Convert between 60+ weight and mass units instantly
- Support for metric, imperial, troy, and scientific units
- See conversion formulas and reference tables
- Works offline - no data sent to servers
Popular Weight Conversions
kg → lb
1 kg = 2.204623 lb
lb → kg
1 lb = 0.453592 kg
kg → oz
1 kg = 35.273962 oz
oz → g
1 oz = 28.349523 g
g → oz
1 g = 0.035274 oz
lb → oz
1 lb = 16 oz
kg → g
1 kg = 1,000 g
g → kg
1 g = 0.001 kg
g → mg
1 g = 1,000 mg
mg → g
1 mg = 0.001 g
kg → t
1 kg = 0.001 t
t → kg
1 t = 1,000 kg
st → kg
1 st = 6.350293 kg
kg → st
1 kg = 0.157473 st
st → lb
1 st = 14 lb
lb → st
1 lb = 0.071429 st
oz → lb
1 oz = 0.0625 lb
lb → g
1 lb = 453.59237 g
g → lb
1 g = 0.002205 lb
ton → kg
1 ton = 907.18474 kg
Frequently Asked Questions
Got questions about our weight converter? We have answers.
Yes, absolutely! Our weight converter is 100% free with no hidden costs, no premium tiers, and no limitations. You can perform as many conversions as you want without paying anything.
We use official scientific conversion factors with high precision. Our conversions are accurate to many decimal places, suitable for both everyday use and scientific applications.
We support 60+ weight and mass units including metric (kilogram, gram, milligram), imperial (pound, ounce, stone), troy (troy ounce, pennyweight), scientific (atomic mass unit, electron mass), and historical units.
Yes! Every conversion page shows the exact formula used. We believe in transparency and helping you understand the math behind each conversion.
Yes, our converter handles very large and very small numbers using appropriate precision. Scientific units like atomic mass units are fully supported.
Troy ounces are a unit of weight used primarily for precious metals like gold and silver. One troy ounce equals approximately 31.1 grams, slightly heavier than a regular (avoirdupois) ounce.
A short ton (US ton) equals 2,000 pounds, while a long ton (imperial ton) equals 2,240 pounds. We support both, plus the metric ton (tonne) which equals 1,000 kilograms.
Yes! Our converter is built as a Progressive Web App (PWA). You can install it on your device and use it completely offline.
We automatically adjust precision based on the conversion. Scientific units show more decimal places while everyday units show practical precision levels.
Absolutely! Our converter is fully responsive and works great on smartphones, tablets, and desktop computers. The interface adapts to your screen size.
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