Common Weight Units
This converter supports commonly used units including:
- Kilograms (kg)
- Grams (g)
- Milligrams (mg)
- Metric tons (t)
- Pounds (lb)
- Ounces (oz)
- Stones (st)
- US short tons
When to Convert Weight Units
Weight conversion is useful for shipping, fitness, cooking, manufacturing, science, commerce, logistics, and everyday measurements. An online converter helps reduce manual calculation errors and makes it easier to compare values expressed in different units.
Weight Conversion FAQ
What is the difference between mass and weight?
Mass measures the amount of matter in an object, while weight is the force exerted on that mass by gravity. Everyday “weight conversion” usually refers to converting mass units such as kilograms, pounds, grams, and ounces.
What is the SI unit used for mass?
The kilogram, with the symbol kg, is the SI base unit of mass. Scientific weight as a force is measured in newtons, but body weight and product weight are commonly stated in kilograms.
What is the general formula for converting weight units?
Convert the original value to kilograms and then divide by the kilogram factor of the target unit. Use target value = original value × source-unit factor ÷ target-unit factor.