How it works
A pound is exactly 0.45359237 kilograms; an ounce is one sixteenth of a pound. A tonne is 1,000 kilograms.
Result = value × source factor / target factor
Worked example
Show example inputs and result
Value: 100 · From unit: kg · To unit: g.
- Converted value
- 100,000 g
Questions and answers
Are these troy ounces?
No. The ounce and pound here are avoirdupois mass units. Precious-metal troy ounces and force units are not included.
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Conversion reference: NIST SI Guide
Method reviewed: October 8, 2026 · Methods & accuracy