Conversion tool

Convert weight units

Enter a value, choose the starting and target units, then convert. Results use standard conversion factors and are rounded for display.

How to use the weight converter

  1. Enter the weight you want to convert. Zero and positive decimal values are supported.
  2. Select the unit your value is currently in.
  3. Choose the unit you want to convert it to.
  4. Select Convert weight to see the result. Use Swap units to reverse the conversion.

Supported weight units

This tool supports kilograms (kg), pounds (lb), grams (g), ounces (oz) and stone (st). It can help with everyday measurement tasks, including converting ingredient weights in recipes or comparing quantities on food packaging.

How the calculation works

The converter changes the entered value to kilograms using a standard factor for the selected starting unit, then converts that kilogram value to the target unit. The displayed result is rounded to up to five decimal places; the underlying calculation uses the conversion factors in the tool.

Important: This is a general unit converter, not a health assessment. For nutrition calculations, use current product labels or reputable food-composition sources. This tool does not provide medical advice.

Frequently asked questions

Which units can I convert?

You can convert between kilograms, pounds, grams, ounces and stone.

How accurate are the results?

The calculator uses standard unit conversion factors and displays up to five decimal places. The number of displayed digits does not mean every real-world measurement is that precise.

Can I use this for recipe ingredients?

Yes. It can convert ingredient weights between supported units. For best results, follow the recipe’s stated units and check whether the ingredient is measured by weight or volume.

Is this a medical or health calculator?

No. It converts units only and does not evaluate health, body composition or nutritional needs.

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