Convert Fathom to US Survey foot
Unit definitions
Fathom
A fathom is a unit of length equal to $6$ feet (i.e., $1.828\,8$ meters).
US Survey foot
A US survey foot is a unit of length equal to $\frac{1\,200}{3\,937}$ meters.
How to convert Fathom to US Survey foot
$$\text{Length}_{\text{sFT}} = \text{Length}_{\text{fm}} \cdot 5.999988$$
Examples
Example 1
Convert $30.0\ \text{fm}$ to $\text{sFT}$.
$$\text{Length}_{\text{sFT}} = 30.0 \cdot 5.999988$$
$$\text{Length}_{\text{sFT}} = 179.99964$$
$$\therefore \ 30.0\ \text{fm} = 179.99964 \ \text{sFT}$$
Example 2
Convert $85.0\ \text{fm}$ to $\text{sFT}$.
$$\text{Length}_{\text{sFT}} = 85.0 \cdot 5.999988$$
$$\text{Length}_{\text{sFT}} = 509.99898$$
$$\therefore \ 85.0\ \text{fm} = 509.99898 \ \text{sFT}$$
Example 3
Convert $115.0\ \text{fm}$ to $\text{sFT}$.
$$\text{Length}_{\text{sFT}} = 115.0 \cdot 5.999988$$
$$\text{Length}_{\text{sFT}} = 689.99862$$
$$\therefore \ 115.0\ \text{fm} = 689.99862 \ \text{sFT}$$
Example 4
Convert $150.0\ \text{fm}$ to $\text{sFT}$.
$$\text{Length}_{\text{sFT}} = 150.0 \cdot 5.999988$$
$$\text{Length}_{\text{sFT}} = 899.9982$$
$$\therefore \ 150.0\ \text{fm} = 899.9982 \ \text{sFT}$$
Example 5
Convert $180.0\ \text{fm}$ to $\text{sFT}$.
$$\text{Length}_{\text{sFT}} = 180.0 \cdot 5.999988$$
$$\text{Length}_{\text{sFT}} = 1079.99784$$
$$\therefore \ 180.0\ \text{fm} = 1079.99784 \ \text{sFT}$$