There are 0.0254 metres in one inch. Therefore, rounded to two decimal places, 3.99 metres is equal to 3.99/0.0254 = 157.09 inches.
399 mm is 15.71 inches.
If they are 12 inches x 12 inches then you would need 399 tiles.
399 square yards is 333.61 square meters.
60 inches is equivalent to 1.52 meters.
4 meters = 157.480315 inches.
There are 393.7 inches in ten meters.
4 inches = .1016 meters
16 inches = 0.4064 meters
61 inches = 1.5494 meters.
63 inches = 1.6 meters.
35 inches is 0.89 meters.
55 inches = 1.397 meters.