How many square millimeters in one meter?

Answer 1

Doesn't work.

Square millimeter is a measure for area, while meter is a simple distance.

You can't compare distance and area just like that.

Answer 2

There are 1,000,000 square millimeters in one square meter. This is because a square meter is equivalent to 1,000 millimeters in length and 1,000 millimeters in width. Multiplying these dimensions gives 1,000 x 1,000 = 1,000,000 square millimeters.

Answer 3

One million.

One metre is one thousand millimetres; so one square metre is one metre by one metre, or one thousand millimetres by one thousand millimetres.