Weight Converter
Convert between milligrams, grams, kilograms, metric tons, ounces, pounds, stone, and tons with real-time results.
Quick Reference
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Free Weight Converter
This converter handles all common weight units in one place. You can convert between milligrams, grams, kilograms, metric tons, ounces, pounds, stone, US short tons, and imperial long tons instantly as you type.
How It Works
Every value is converted through a shared base unit (kilograms), then converted to your target unit. This approach keeps conversions consistent and accurate across all supported units.
Common Weight Conversion Formulas
1 lb = 16 oz, 1 lb = 0.45359237 kg, 1 kg = 1000 g, and 1 stone = 14 lb. The converter also includes metric tons, US short tons, and imperial long tons for shipping and industrial use.
When This Tool Is Useful
Use it for recipes, nutrition tracking, shipping estimates, fitness plans, and international documentation where metric and imperial weights need to match exactly.
Frequently Asked Questions
What units are supported?
Milligrams, grams, kilograms, metric tons, ounces, pounds, stone, US short tons, and imperial long tons.
How many ounces are in one pound?
Exactly 16 ounces.
How do you convert pounds to kilograms?
Multiply pounds by 0.45359237.
What is the difference between metric ton and US ton?
A metric ton is 1,000 kg. A US short ton is 2,000 lb (about 907.18474 kg).
Does this tool save or upload my input?
No. All calculations run locally in your browser and nothing is sent to a server.