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.
450 meters is 1,476.4 feet.
4.5 meters
450 centimeters = 4.5 meters
A foot is 0.3048 meters. So that would give you 137.16 meters.
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 nanometers is equal to 0.00000045 meters.
450 meters = 450/.0254 inches = 17,716.5 inches