Convert Pound-force to Kilogram-force
Unit definitions
Pound-force
Pound-force is the force exerted by a mass of one pound in standard gravity ($gₙ$) ($1\ \text{lbf} \approx 4.448\,22\ \text{N}$).
Kilogram-force
Kilogram-force is the force exerted by a mass of one kilogram in standard gravity ($gₙ$) ($1\ \text{kgf} = 9.806\,65\ \text{N}$).
How to convert Pound-force to Kilogram-force
$$\text{Force}_{\text{kgf}} = \text{Force}_{\text{lbf}} \cdot 0.45359237$$
Examples
Example 1
Convert $30.0\ \text{lbf}$ to $\text{kgf}$.
$$\text{Force}_{\text{kgf}} = 30.0 \cdot 0.45359237$$
$$\text{Force}_{\text{kgf}} = 13.607771$$
$$\therefore \ 30.0\ \text{lbf} = 13.607771 \ \text{kgf}$$
Example 2
Convert $85.0\ \text{lbf}$ to $\text{kgf}$.
$$\text{Force}_{\text{kgf}} = 85.0 \cdot 0.45359237$$
$$\text{Force}_{\text{kgf}} = 38.555351$$
$$\therefore \ 85.0\ \text{lbf} = 38.555351 \ \text{kgf}$$
Example 3
Convert $110.0\ \text{lbf}$ to $\text{kgf}$.
$$\text{Force}_{\text{kgf}} = 110.0 \cdot 0.45359237$$
$$\text{Force}_{\text{kgf}} = 49.895161$$
$$\therefore \ 110.0\ \text{lbf} = 49.895161 \ \text{kgf}$$
Example 4
Convert $130.0\ \text{lbf}$ to $\text{kgf}$.
$$\text{Force}_{\text{kgf}} = 130.0 \cdot 0.45359237$$
$$\text{Force}_{\text{kgf}} = 58.967008$$
$$\therefore \ 130.0\ \text{lbf} = 58.967008 \ \text{kgf}$$
Example 5
Convert $180.0\ \text{lbf}$ to $\text{kgf}$.
$$\text{Force}_{\text{kgf}} = 180.0 \cdot 0.45359237$$
$$\text{Force}_{\text{kgf}} = 81.646627$$
$$\therefore \ 180.0\ \text{lbf} = 81.646627 \ \text{kgf}$$