This area calculator can work in two (2) ways.

• Press the Calibrate button below this instructions and every unit of area will be calculated against 1 square millimetre.

• Enter a figure in the appropriate unit box and press the Calculate button at the bottom. For example if you want to know how many square miles in two and a half acres type 2.5 in the acres box and press the Calculate button.

If you see an e with a - or + symbol and then a number move the decimal place to the left or right accordingly. For example 6.265e+11 you move the decimal place to the right 11 spaces.