Converters

Weight Converter

Convert mass between kilograms, grams, pounds and ounces.

Conversion factors explained belowNo live data needed
Conversion workspace
Conversion workspace

Check the quantity, source unit and destination unit.

See the method

Choose units and a value

Runs on your device

Your converted value

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this converter

  1. Enter mass, from, to.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

Input reference and sample values

Use the units and choices shown for each field. Sample values are provided for practice, not as recommendations.

InputFormat and unitsSample
MassNumeric value. Zero or positive.70
FromChoose Kilograms / Grams / Milligrams / Pounds / Ounces.Kilograms
ToChoose Kilograms / Grams / Milligrams / Pounds / Ounces.Pounds

Result for these sample inputs

154.323584 lb
Conversion factor
2.20462262

Select Try the example in the form to load these values and calculate them again. This replaces the current form inputs. Compare the result with the method and worked explanation below.

The method, explained

Converted value = input × kilograms per source unit ÷ kilograms per target unit. One international avoirdupois pound is exactly 0.45359237 kilograms.

A WORKED EXAMPLE

1 kilogram is approximately 2.20462 pounds. A 16-ounce avoirdupois quantity is exactly 1 pound.

What to keep in mind

This everyday weight converter converts mass, not force. Ounces are avoirdupois ounces, not fluid or troy ounces.

Common questions

Can this convert fluid ounces?

No. Fluid ounces measure volume, which requires a volume converter or a material density.

Is this suitable for precious metals?

Precious metals often use troy ounces. This tool uses ordinary avoirdupois ounces, so select a dedicated troy conversion instead.

Methodology maintained by ClarityKit. How these tools are built and checked.