About this weight converter
Convert kilograms, grams, pounds, ounces and stones. Values convert through kilograms using international avoirdupois definitions: one pound is exactly 0.45359237 kg, one ounce is one sixteenth of a pound, and one stone is 14 pounds. Use this workspace to prepare a result you can review before putting it to use. All processing takes place on your device, without an account or an upload of your inputs. Check the examples to understand the expected output, read the limitations for the supported scope, and reset the form when you want to start a separate task.
How the weight converter works
Values convert through kilograms using international avoirdupois definitions: one pound is exactly 0.45359237 kg, one ounce is one sixteenth of a pound, and one stone is 14 pounds.
Weight Converter examples
1 kg → g
1000 g
1 lb → kg
0.45359237 kg
Limitations & privacy
Nonnegative values up to 1 trillion. This converts mass; it does not calculate gravitational force. Display uses up to 15 significant digits; floating-point rounding still applies.
Inputs and results stay in this browser. Only tool identifiers are stored for your recently used tools. You can clear that history from the directory.
Weight Converter: frequently asked questions
How does the weight converter work?
Values convert through kilograms using international avoirdupois definitions: one pound is exactly 0.45359237 kg, one ounce is one sixteenth of a pound, and one stone is 14 pounds.
What can I inspect in the weight converter result?
The conversion input audit helps you check the result before using it. Nonnegative values up to 1 trillion. This converts mass; it does not calculate gravitational force. Display uses up to 15 significant digits; floating-point rounding still applies.
Does the weight converter upload my input?
Processing happens in your browser. No tool input or output is uploaded to a server. Use Reset to clear the current workspace before starting a separate task.
Updated September 20, 2026