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Conversion Unit conversion

Weight/Mass Converter

Convert between metric and imperial weight units.

Conversion

Weight/Mass Converter converts one source mass into milligrams, grams, kilograms, tonnes, ounces, pounds, and US tons. It treats the entered value as mass-equivalent units, not a local force measurement that changes with gravity. Enter the value and source unit, then review every target unit at once so packaging, shipping, lab, or inventory notes can keep the original input and converted values together.

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Input guidance

Enter the source value, select source and target units where available, then review conversion factors and displayed rounding before copying the result.

How to use this tool

Enter the source weight or mass value.
Select the unit that the source value is currently measured in.
Run the conversion and review the metric and US customary outputs.
Copy or share the result together with the source value and source unit so it can be reproduced later.

Weight/Mass Converter

Convert between metric and imperial weight units.

Results

Metric:

Milligrams: 1,000,000.000 mg

Grams: 1,000.000 g

Kilograms: 1.000 kg

Tonnes: 0.001000 t

Imperial:

Ounces: 35.274 oz

Pounds: 2.205 lb

Tons (US): 0.001102 ton

Formula or method

Applies fixed conversion factors between the supported source and target units, then rounds displayed values for readability.

How to interpret the result

The source mass converts to 1 kg and 2.2 lb in the common metric and imperial forms.
These are unit conversions only; they do not account for local trade definitions, packaging, moisture, or measurement uncertainty.
Displayed values are rounded for readability.

Review note and limitations

Converted values depend on the selected units, conversion factors, and displayed rounding.
Some domains use conventions or reference conditions that may differ from a simple unit conversion.

Related tools and workflows

Related conversion tools help verify neighboring units, dimensions, rates, or reference values before copying a converted result. Start with Cooking Measurements Converter, Volume Converter, and Density Calculator when you need a quick follow-up check.

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