1830 square feet how many square metres

One foot is approximately 0.3048 meters. If you square that, you come up with 1 square foot = 0.092903 square meters.

Now set up a proportion:

1 ft² over 0.092903 m² = 1830 ft² over x m²

$${\frac{{\mathtt{1}}}{{\mathtt{0.092\: \!903}}}}$$   =  $${\frac{{\mathtt{1\,830}}}{{\mathtt{x}}}}$$

Cross-multiply:

0.092903 * 1830 = x

x = $${\mathtt{0.092\: \!903}}{\mathtt{\,\times\,}}{\mathtt{1\,830}} = {\mathtt{170.012\: \!49}}$$

x = 170 m²