Weight Converter
Convert weight and mass between kilograms, grams, pounds and ounces using the exact international factors — 1 lb is 0.45359237 kg by definition. Useful for parcel limits, ingredient scaling and anything quoted in the other system.
Weight Converter
Batch Converter
Range Converter
Weight Comparison
Weight Units Information
Kilogram (kg)
The kilogram is the base unit of mass in the International System of Units (SI). It is defined as being equal to the mass of the International Prototype of the Kilogram.
- 1 kg = 1000 grams
- 1 kg ≈ 2.20462 pounds
- Used worldwide as the standard unit of mass
lb = kg × 2.20462
oz = kg × 35.274
Gram (g)
The gram is a metric system unit of mass. It is widely used in everyday life and scientific contexts.
- 1 g = 0.001 kilograms
- 1 g ≈ 0.035274 ounces
- Commonly used for measuring small quantities
lb = g ÷ 453.592
oz = g ÷ 28.3495
Pound (lb)
The pound is a unit of mass used in the imperial and US customary systems of measurement.
- 1 lb = 0.453592 kilograms
- 1 lb = 16 ounces
- Commonly used in the United States and some other countries
g = lb × 453.592
oz = lb × 16
Ounce (oz)
The ounce is a unit of mass used in most British-derived customary systems of measurement.
- 1 oz = 28.3495 grams
- 1 oz = 0.0625 pounds
- Often used for measuring packaged food products
g = oz × 28.3495
lb = oz ÷ 16
Frequently Asked Questions about Weight Conversion
Is a kilogram the same as 2.2 pounds?
Close: 2.20462 lb exactly. For billing or postal limits use the full factor rather than the rounded 2.2.
What is the difference between weight and mass here?
Everyday conversion treats them as the same figure; the page converts the unit labels, not the physics.
Will my original file be changed?
The result is downloaded as a separate file. Keep your original until you have checked the Converted weight.
What should I check before using the result?
Open the Converted weight in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.
Is Weight Converter free?
This page is available without creating an account or installing desktop software. Any file, browser, or tool-specific limits are shown in the upload area and options panel.
Are my files safe when I convert online?
This local conversion workflow processes the selected file in your browser. Check the processing notice on the page before using the tool for sensitive material.
What Is Weight Converter?
This page handles weight and mass units for cooking, shipping, and science directly in your browser. It is designed for a clear, repeatable conversion step rather than a promise that every file or application will produce identical output.
The upload control accepts common text, data, and utility conversion inputs. Use the options that are actually shown on this page, then preview or open the result before sharing, publishing, or importing it into another application.
The source and target formats have different rules for compression, layout, metadata, transparency, animation, or text structure. Keeping the original file makes it easy to adjust the conversion if the first result is not suitable.
How to Convert with Weight Converter
- Open the tool — Review the accepted input types and the processing notice.
- Add files — Click Select Files or drag common text, data, and utility conversion inputs into the upload area.
- Review options — Choose the controls shown for this conversion, such as quality, resolution, page range, or output format.
- Convert and check — Start the job, download the result, and open it in the destination application before deleting the original.
Why Use Weight Converter?
Digital workflows often mix formats with different rules. The weight converter provides a focused conversion step when you need weight and mass units for cooking, shipping, and science and want to inspect the result before using it elsewhere.
Common Use Cases
This converter can help with weight and mass units for cooking, shipping, and science in workflows involving everyday calculations, developer utilities, and text transformations. It is most useful when the target application or service specifies a different file type.
Treat the output as a new file: open it, check the important details, and keep the source available until the next step is complete.
Popular Weight Conversions
- Kilograms to Pounds (kg to lbs)
- Pounds to Kilograms (lbs to kg)
- Grams to Ounces (g to oz)
- Ounces to Grams (oz to g)