Weight Converter
Convert between all 8 weight units — Milligram, Gram, Kilogram, Pound, Ounce, Stone, US Ton, Metric Ton — with instant results, formulas and worked examples.
A single converter for every weight unit on ConvertWorks. Pick any two units, type a value, and get an instant, accurate result — no page reloads and nothing leaves your browser. Dedicated pages for the most popular pairs are linked below.
Quick reference — Milligrams to Grams
Every unit above is defined relative to the kilograms: pick any pair and the converter divides the two base factors, so results stay consistent across the whole category.
How to use this calculator
- Choose the unit you have in the From dropdown.
- Choose the unit you want in the To dropdown.
- Type your value — the result updates instantly.
- Use Swap to reverse the conversion, or open a dedicated pair page below for one specific conversion.
The formula
Result = Value × (from-unit factor ÷ to-unit factor), with all factors relative to the kilograms.
Worked example
70 kg = 154.324 lb — in full, 70 Kilograms converts to 154.324 Pounds. Body weight, luggage allowances and grocery weights are the everyday jobs for this conversion.
Frequently Asked Questions
What units does this weight converter include?
It covers Milligram, Gram, Kilogram, Pound, Ounce, Stone, US Ton, Metric Ton — 8 units in total. Every conversion runs through the kilograms as the common reference, so any pair you pick stays consistent with every other pair.
How does this weight converter work?
Each unit is defined by an exact factor relative to the kilograms. To convert, the tool multiplies your value by the from-unit's factor and divides by the to-unit's factor, then rounds the display to six significant figures.
How accurate are the results?
The factors come from the official definitions of the units (for example, 1 inch is exactly 0.0254 meters and 1 pound is exactly 0.45359237 kilograms), so conversions are as accurate as the definitions themselves. Display rounding to six significant figures can hide trailing digits on extreme values.
Can I convert Kilograms to Pounds with this tool?
Yes — select Kilograms and Pounds in the dropdowns. For example, 70 Kilograms equals 154.324 Pounds, and the dedicated pair page linked below focuses on just that conversion.