How accurate is a 10 digit grid?

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Multiple Choice

How accurate is a 10 digit grid?

Explanation:
In this grid system, precision comes from how many digits you use to specify the easting and northing. Each extra digit narrows the area of uncertainty by ten, so adding digits moves from meters to sub-meter accuracy. A 10-digit grid reference uses five digits for the easting and five for the northing, giving 1-meter resolution. That means you can locate a point to within about one meter on the ground. In contrast, fewer digits yield coarser accuracy (for example, 6 digits ~ 100 meters, 8 digits ~ 10 meters). A 1-centimeter precision isn’t achievable with standard grid references.

In this grid system, precision comes from how many digits you use to specify the easting and northing. Each extra digit narrows the area of uncertainty by ten, so adding digits moves from meters to sub-meter accuracy. A 10-digit grid reference uses five digits for the easting and five for the northing, giving 1-meter resolution. That means you can locate a point to within about one meter on the ground. In contrast, fewer digits yield coarser accuracy (for example, 6 digits ~ 100 meters, 8 digits ~ 10 meters). A 1-centimeter precision isn’t achievable with standard grid references.

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