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Weight Converter Units

Convert kilograms, pounds, stones, ounces, grams and tonnes.

Weight Converter is a free online tool that convert kilograms, pounds, stones, ounces, grams and tonnes. It runs entirely in your web browser using plain JavaScript, so files are processed on your own device and never uploaded to a server. There is no sign-up, no file size limit imposed by the site, no watermark and no paid tier.

Price
Free — no account, no quota, no watermark
Category
Units
Where it runs
In your browser, on your device
Files uploaded
None
Technology
plain JavaScript
Settings
3
Works offline
Yes, after the first visit

About Weight Converter

Weight Converter is one of 19 units tools on DuckyTools, and like all of them it runs entirely inside this page. Convert kilograms, pounds, stones, ounces, grams and tonnes.

How to use it

  1. Enter value, from and to.
  2. Results update the moment anything changes.

The 3 settings

SettingWhat it doesDefault
ValueA numeric value.1
FromChoose from 9: Milligrams, Grams, Kilograms, Tonnes (metric), Ounces, Pounds….Kilograms
ToChoose from 9: Milligrams, Grams, Kilograms, Tonnes (metric), Ounces, Pounds….Pounds

Conversion reference

Exact factors used by this converter, expressed against milligrams (mg). These are the defined values, not rounded approximations.

UnitSymbolIn mg
Milligramsmg1.000000 × 10^-6
Gramsg0.001
Kilogramskg1
Tonnes (metric)t1,000
Ouncesoz0.028349523125
Poundslb0.45359237
Stonesst6.35029318
US tonston907.18474
UK tonslong ton1,016.0469088

Under the hood

Runs onplain JavaScript — runs the whole thing
ControlsValue, From, To

Questions

What does the from option change?

It offers 9 choices — Milligrams, Grams, Kilograms and Tonnes (metric) and more. The default is Kilograms, which suits most cases; change it when your input or your destination calls for something specific.