The question is underspecified. So the answer is either:
12 linear metres into rolls?
There are 4.5 meters in 450 centimeters.
4.5 metres
450 centimeters equal 4 1/2 meters (4.5 meters), since there are 100 centimeters in each meter.
4.5 are or 0.045 hectare.
4.5 meters
450 meters is 1,476.4 feet.
The commonly used conversion factor is centimetres to inches (1" = 2.54 cm) 450 m is 45,000 cm, which would be about 17,716.5" 1' is 12", so the answer would be approximately 1476.4'. A better answer would be, why bother? Stick to metres!
450 centimeters = 4.5 meters
A foot is 0.3048 meters. So that would give you 137.16 meters.
450 meters = 450/.0254 inches = 17,716.5 inches
450 nanometers is equal to 0.00000045 meters.