Unit Converters
Weight Converter
Weight — weight Converter converts between mass units — kilograms, grams, pounds, ounces and tonnes — through a kilogram base. This page runs that same calculation on your numbers, in your browser: no signup, no uploads, nothing stored.
Weight Converter is a browser-based way to convert a weight measurement between units such as grams, ounces, pounds and kilograms. Feed it your value plus the source and target units and it computes the converted weight in the unit you choose on the spot, keeping your data local.
Mass units use the international avoirdupois pound (exactly 0.45359237 kg); one ounce is 1/16 pound and one stone is 14 pounds.
About this calculator
Get weight right and the rest of the task gets easier. Weight Converter converts between mass units — kilograms, grams, pounds, ounces and tonnes — through a kilogram base. It matters whenever the same quantity is expressed in two systems and a wrong factor silently breaks the answer. To convert 5 kilograms to pounds, multiply by 2.2046: 5 × 2.2046 = 11.02 lb . Back the other way, 16 ounces make 1 pound, so 32 oz is 2 lb. The tool above does the same computation in your browser — free, private, nothing stored.
How to use
- Enter the weight value.
- Choose the From weight unit.
- Choose the To weight unit.
- Press Calculate to see the converted weight.
Why use Weight Converter
Fast
Calculations run in your browser. No round trip to a server.
Private
Your inputs never leave your device. Nothing is uploaded.
Free
No signup, no paywall, no ads-in-results, no watermarks.
Accurate
Uses standard conversion factors where applicable. Check critical measurements before relying on the result.
Mobile-ready
Optimised for phones, tablets, and desktops alike.
Transparent
Honest disclaimers wherever browser limits or regional rules apply.
Common uses
Use it for cooking and kitchen scales
Use it for product and catalogue listings
Use it for gym and bodyweight tracking
Use it for luggage weight checks
Use it when buying produce by weight
Use it when reading nutrition labels
Technical notes
Weight Converter converts between mass units — kilograms, grams, pounds, ounces and tonnes — through a kilogram base.
Conversions use standard reference factors; for trade or engineering tolerances keep more decimal places than the display shows.
Nothing you type is uploaded — the calculation happens entirely on your device.
Worked example
To convert 5 kilograms to pounds, multiply by 2.2046: 5 × 2.2046 = 11.02 lb. Back the other way, 16 ounces make 1 pound, so 32 oz is 2 lb.
FAQ
Which weight units are supported?
Milligrams, grams, kilograms, tonnes, ounces, pounds, and stone.
Is 1 kg to lb accurate?
Yes. It uses 1 lb = 0.45359237 kg, so 1 kg is about 2.204624 lb.
Does this measure mass or weight?
For everyday use the units are treated as mass; the same numbers are commonly called weight.
Does the Weight Converter send my data to a server?
No. The Weight Converter runs entirely in your browser, so nothing you enter is uploaded, stored, or shared.