Weight Converter
Convert between milligrams, grams, kilograms, metric tons, ounces, pounds and stones instantly.
Convert between milligrams, grams, kilograms, metric tons, ounces, pounds and stones instantly.
Weight Converter provides a convenient way to convert a measurement from one weight unit to another, including milligrams, grams, kilograms, metric tons, ounces, pounds, and stones. Enter a value, select the original unit and the required target unit to obtain the corresponding measurement without performing manual conversion calculations.
Weight measurements are expressed differently across metric and imperial systems. Understanding the relative scale of each unit makes it easier to select the appropriate measurement for a particular calculation.
| Unit | Abbreviation | Common Measurement |
|---|---|---|
| Milligram | mg | Very small quantities |
| Gram | g | Small everyday quantities |
| Kilogram | kg | General body weight and product measurements |
| Metric Ton | t | Large quantities and industrial materials |
| Ounce | oz | Smaller imperial measurements |
| Pound | lb | Personal, commercial and general imperial measurements |
| Stone | st | Body weight measurement, particularly in the UK |
The converter supports measurements from both major weight systems. Metric units are based on decimal relationships, while imperial units use different conversion factors.
This allows the same physical quantity to be represented according to the measurement system required.
The following examples illustrate common conversions between frequently used units.
| From | To | Conversion |
|---|---|---|
| 1 kg | g | 1,000 g |
| 1 kg | lb | 2.20462 lb |
| 1 lb | kg | 0.453592 kg |
| 1 oz | g | 28.3495 g |
| 1 stone | kg | 6.35029 kg |
| 1 metric ton | kg | 1,000 kg |
Conversion results may be displayed with decimal values because many units do not have an exact whole-number relationship with one another.
The most suitable unit depends primarily on the scale of the measurement.
Milligrams and grams are appropriate for very small quantities such as ingredients, medication measurements, laboratory materials, and lightweight objects.
Kilograms are commonly used for body weight, packaged goods, equipment, luggage, and general commercial measurements.
Metric tons are more appropriate for large quantities of raw materials, machinery, cargo, and industrial goods.
Ounces and pounds are widely used where imperial measurements are required, while stones are primarily associated with expressing body weight in the UK and some other regions.
A conversion becomes particularly useful when information is provided in a unit different from the one required for the calculation.
For example, a shipment weighing 500 kg can be represented as approximately 1,102.31 lb. Similarly, a weight of 10 lb corresponds to approximately 4.53592 kg.
The underlying quantity does not change during conversion. Only its numerical representation changes according to the selected unit.
The direction selected in the converter determines how the numerical value is transformed.
Kilograms → Pounds
1 kg ≈ 2.20462 lb
Pounds → Kilograms
1 lb ≈ 0.453592 kg
These are inverse relationships. Rounding the displayed result can produce a slightly different value when the conversion is subsequently reversed, so additional decimal places may be useful when greater numerical accuracy is required.
Weight conversion is frequently required when working with different types of commercial, technical, personal, and everyday measurements.
Metric and imperial systems use different units and conversion relationships. Metric measurements such as grams, kilograms, and metric tons follow a decimal-based system, making conversions within the metric system straightforward.
Imperial measurements such as ounces, pounds, and stones use different relationships. A Weight Converter helps translate between these systems without requiring the user to remember every conversion factor.
When accuracy is important, the displayed decimal precision should be considered because rounded conversion values may vary slightly from the underlying measurement.
Convert weight measurements quickly by entering a value, selecting the original unit, and choosing the unit you want as the result.
Enter the numerical weight value you want to convert into the input field.
Choose the unit that matches your entered measurement, such as grams, kilograms, pounds, or ounces.
Choose the unit you want to convert the measurement into.
Check the converted weight displayed by the calculator and use the result for your calculation, document, or application.
The Weight Converter supports milligrams, grams, kilograms, metric tons, ounces, pounds, and stones.
One kilogram contains 1,000 grams.
One kilogram is approximately 2.20462 pounds.
One pound is approximately 0.453592 kilograms .
No. A metric ton equals 1,000 kilograms, while an imperial ton uses a different measurement and is approximately 1,016.05 kilograms.