To convert millimeters (mm) to meters (m), you need to divide the value in millimeters by 1000, since there are 1000 millimeters in a meter. Here's the conversion formula:

m = mm / 1000

For example, if you have 5000 millimeters, the conversion would be:

m = 5000 mm / 1000 = 5 meters

So, 5000 millimeters is equal to 5 meters.