To convert feet and inches into square metres the first thing you need to do is turn the initial measurement into inches.
So if you have a shape measuring 4ft 8 ins x 1ft 9ins, your dimensions become 56ins x 21ins. You then multiply them to get your square inches 56 x 21 = 1176 square inches. Then you convert that to square meters and with 39.4 inches in a meter the answer would be 1 square meter = 1552.4 square inches.
And using this example would mean: Square meters = 1176 square inches divided by 1552.4 = 0.76 square.
To spare the brain a mathematical work out, you can also log on to www.metric-conversions.org/area/square-feet-to-square-meters and make it easy on yourself.
So if you have a shape measuring 4ft 8 ins x 1ft 9ins, your dimensions become 56ins x 21ins. You then multiply them to get your square inches 56 x 21 = 1176 square inches. Then you convert that to square meters and with 39.4 inches in a meter the answer would be 1 square meter = 1552.4 square inches.
And using this example would mean: Square meters = 1176 square inches divided by 1552.4 = 0.76 square.
To spare the brain a mathematical work out, you can also log on to www.metric-conversions.org/area/square-feet-to-square-meters and make it easy on yourself.