Enter a value, pick your units.
Type a weight, choose where it's converting from and to, and get an exact result — with an advanced mode for full precision control and a complete unit table.
Applies to the main result and the full unit table below.
Three fields, one result.
No manual required — here's the entire flow.
Enter your value
Type the weight you want to convert into the value field. The tool starts you off with a value of 1.
Pick your units
Choose the unit you're converting from and the unit you want, or tap ⇅ to instantly swap the two.
Hit convert
Tap Convert and the exact result appears immediately in the results panel, right beside the tool.
Go further
Open Advanced options to adjust decimal precision or view your value converted into every supported unit at once.
Ten units, exact factors, full control.
Every conversion uses fixed, standard-defined factors — never rough estimates.
Metric units
The full metric scale, from milligrams up to metric tons, all tied to the kilogram as the base unit.
Imperial & US units
Includes both the US short ton (2,000 lb) and the UK long ton (2,240 lb) as separate, clearly labeled units.
Advanced controls
Adjust decimal precision from 0–8 places, swap units in one tap, or view every conversion side by side.
Questions people actually ask.
The short answers — with the long ones one tap away.
How do I convert kilograms to pounds?+
Multiply the number of kilograms by 2.2046226218 to get pounds. In this tool, just set Convert from to Kilogram and Convert to to Pound, or tap the 1 KG → LB quick-conversion chip.
What is the exact conversion factor between pounds and kilograms?+
One international pound is defined as exactly 0.45359237 kilograms. This tool uses that exact figure, along with the equally precise standard factors for ounces, stone, and tons, so results are accurate rather than rounded estimates.
What's the difference between a US ton and a UK ton?+
A US (short) ton equals 2,000 pounds, or 907.18474 kg. A UK (long) ton equals 2,240 pounds, or 1,016.0469088 kg. A metric ton is a separate unit equal to exactly 1,000 kg. This tool lists all three separately to avoid confusion.
Can I see a value converted into every unit at once?+
Yes. Tap Show advanced under Advanced options and the results panel will display a full table converting your entered value into every supported unit at the same time.
Can I change how many decimal places are shown?+
Yes. Open Advanced options and choose a decimal precision from 0 to 8 places. It applies to both the main result and the full conversion table.
Is this weight converter free, and does it work offline once loaded?+
It's completely free with no account or sign-up. All the math runs directly in your browser using fixed conversion factors — no data is sent anywhere, and no external service is called to perform a conversion.