Weight Converter

Convert a non-negative weight between kg, g, mg, lb and oz. Compare five labelled outputs and distinguish decimal pounds from pounds-and-ounces notation.

Enter a weight once and view five unit results together. This tool uses ordinary avoirdupois pound and ounce factors; it has no ingredient-density or liquid-volume model. Choose the source unit before interpreting the result.

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  1. 1Enter details
  2. 2View result
1.0000Kilograms (kg)
1000.0000Grams (g)
1000000.0000Milligrams (mg)
2.2046Pounds (lb)
35.2740Ounces (oz)

Your input stays on this device for this operation. We don’t upload or store it.

About Weight Converter

Enter a weight once and view five unit results together. This tool uses ordinary avoirdupois pound and ounce factors; it has no ingredient-density or liquid-volume model. Choose the source unit before interpreting the result.

Five output cards

Shows kg, g, mg, lb and oz simultaneously.

Pound and ounce factors

Uses 0.45359237 kg per pound and 0.028349523125 kg per ounce.

Fractional input

Accepts decimal amounts such as 0.5 kg or 2.25 lb.

How to use Weight Converter

  1. 1

    Enter the numeric weight

    Fill Value using a non-negative number.

  2. 2

    Select the source unit

    Choose kilograms, grams, milligrams, pounds or ounces in From Unit.

  3. 3

    Read the needed unit

    Review the matching result card. Cards show four decimal places, so retain a more precise source when tiny differences matter.

Formats and practical limits

Input: one non-negative weight and its unit. Output: kilograms, grams, milligrams, pounds and ounces to four decimal places.

  • No troy ounces, stones, fluid volume or combined pounds-and-ounces formatting.
  • Very small outputs can round to zero; numeric conversion does not establish the precision of a scale.

Practical example

Enter 1 and choose lb. The kilogram card shows 0.4536 and the ounce card shows 16.0000.

Further reading

Frequently Asked Questions

3 answers
Does it accept stones and pounds?

No. The listed source units are kg, g, mg, lb and oz; mixed stones-and-pounds input is unavailable.

Can I convert ounces to cups?

No. These ounces are a weight unit, not fluid ounces. Cups require volume and sometimes ingredient-density information.

Can I use pounds in BMI Calculator?

Convert to kilograms first. The separate BMI tool accepts kg and cm, not pounds directly.