250 mm = 2.5 decimeters.
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∙ 10y ago250 millimeters is 2.5 decimeters.
990 millimeters is 9.9 decimeters.
2.5 decimeters=250 millimeters
30 decimeters is equal to 3000 millimeters.
2 decimeters ==
400 mm
1.
0.01 decimetres = 1 mm.
0.25m = 25 cm
2000 millimetres
1000mm 1/1000 mm
1 Mm = 10000000 dm