Sorry, I thought you were talking about the labels shown on drafting-style dimension lines.

Have you read the

Forum Survival Guide? There's no one here that can do anything about your complaints; we're just users like yourself.

There are two problems (at least). One is that OOo's dimension entry widgets are always limited to two decimal places--period. Whatever you enter is rounded to two places, and entered into the file based on the rounded number. You can enter more precise values if you switch to a metric measurement unit: 0.01 inch >> 0.01 mm.

Second, OOo's internal dimensions are based on metric units, with a maximum precision of 0.01 mm (the two-decimal place limit again). You can convert between metric units without loss of precision, but converting with any other units will incurr rounding errors.

When the drawing scale is large, other errors come in, and the results can be quite obvious.

These are all well-known problems. E.g., see

Issue 45593:

Measurement unit: Inch - Needs more decimal placesIssue 52990:

a dimension line of 200" will display as 199.9"Issue 89872:

dimension lines may show large errors for foot unitIssue 26783:

Dimension/Grid is off when using inches, but not cm.Issue 42118:

Provision for dimensions in microns (0.001mm)All at onceYou can register there and add your vote (up to two) or comment.