Calculator
Unit conversion
Equivalent quantities with the calculation shown below.
Equivalent values
| Unit | Value |
|---|---|
| Gram (g) | 45,359.237 |
| Kilogram (kg) | 45.359237 |
| Metric tonne (t) | 0.045359237 |
| Pound (lbs) (lb) | 100 |
Transfer catalogue mass into a material schedule
Equipment catalogues may use pounds, shipment schedules kilograms, and small parts grams. Convert to a common unit before multiplying by quantity and summing. Net equipment mass, packaged shipping mass and operating mass including fluid may differ. A unit conversion cannot correct that difference in scope; record which catalogue figure you used.
Read lb, lbs and ton definitions carefully
Both lb and lbs mean the same pound of mass in this tool, with 1 lb = 0.45359237 kg. A metric tonne is 1000 kg. A US short ton is 2000 lb, while a UK long ton is 2240 lb. Neither equals a metric tonne. When a document says only “ton”, establish the definition from its unit notes or supplier before converting.
Mass is not a force or a lifting specification
The kilogram measures mass; the newton measures force. Gravitational force needs F = m × g. For example, 100 kg with an assumed g of 9.81 m/s² gives approximately 981 N. Similarly, lb and lbf represent different quantities. A mass conversion alone does not select a suspension or lifting component; load distribution and the equipment’s applicable capacity conditions still need assessment.
Worked examples
Imported equipment
100 lb × 0.45359237 = 45.359237 kg. A schedule using two decimal places shows 45.36 kg; retain unrounded intermediate values.
Repeated components
For twelve parts of 750 g, calculate 750 / 1000 = 0.75 kg, then 12 × 0.75 = 9 kg.
Metric shipment schedule
2.4 t × 1000 = 2400 kg. This example uses metric tonnes; a US short-ton document needs a different factor.
Definitions and calculation method
Unit factors and temperature-scale relationships: NIST SP 811, Appendix B.8 ↗.
Application examples were prepared for this page. Values are converted through the reference unit before display rounding; displayed results use up to 12 significant digits. A converted reading retains the uncertainty of the original measurement.