In 1 tonne-force there are 2,204.622431 pound of force. Meanwhile in 1 pound of force there are 0.000454 tonne-force. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Pound of force to Tonne-force calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert tonne-force (tf) to pound-force (lbf), multiply by the fixed conversion factor:
Formula
Quick examples
Use scientific notation when numbers get large. It keeps the value easy to read and helps avoid rounding errors.
Tonne-force (tf) is a unit of force based on the weight of a 1-metric-ton mass under standard gravity. It represents the downward force that gravity applies to 1,000 kg at Earth’s surface (using standard gravity).
Pound-force (lbf) is a unit of force used mainly in the US customary system. It equals the force needed to accelerate a 1-pound mass at standard gravity, and it matches the weight of 1 lb under standard gravity.
1 tonne-force equals 2,204.6226218 pound-force (lbf) under standard gravity.
Use this conversion:
This works when tonne-force is defined using standard gravity.
Use the inverse conversion:
This converts pound-force back to tonne-force under standard gravity.
A metric ton (tonne) is a unit of mass, not force. Tonne-force is a force unit based on that mass under gravity. Mass stays the same; force depends on gravity.
The tf and lbf units are tied to standard gravity, so the conversion is fixed. If you are working with actual weight in a different gravity field, the force may change, but the unit conversion between tf and lbf does not.
Yes. Tonne-force (tf) and metric ton-force (sometimes written as tonf) refer to the same unit, based on a 1-tonne mass under standard gravity.
For a fast mental check:
This rounded value is close enough for rough work.
Using 1 tf = 2,204.6226218 lbf:
Tonne-force shows up in some engineering and load ratings where metric-based force units are used. Pound-force is common in US specs for loads, bolts, lift points, and test forces.
lb usually means pound-mass, while lbf means pound-force. In everyday use, people often say “pounds” for weight, but in calculations it helps to keep lbm (mass) and lbf (force) separate.
Not directly, because tf is force and lb is usually mass. If you mean pounds-force, convert tf to lbf. If you need pounds-mass from a force, you must state the gravity you are using and convert using physics, not just a unit swap.
Common uses include:
The Calculate Box tool to convert tonne-force to pound of force uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a tonne-force value in the box and have it instantly converted to pound of force.