Just an observation, and I might be wrong and stand to be corrected. Typing in the value has limits on the digits past the decimal place. I think the limit is 3? (.000). If you wish to have better accuracy then more digits need to be added, thus allowing you to complete the scaling in one conversion.

If the conversion file is above one megabit then the conversion will take time. If the digits is the limiting factor then the conversion needs to be performed several times to achieve the required accuracy.

Obviously there are other ways around this using other software, as mentioned earlier.

3 significant digits isn’t enough? Wow! Well, you scale to a proportion, then scale again I suppose. I can’t imagine scaling to 4 digits. Best of luck. McD

Three digits is all you can display yes, however the internal precision is much higher. You can use a number, say to 5 decimal places and it will scale correctly.

I scaled the top surface of the 1st cylinder to 1.235 and the 2nd to 1.23505. The area shown at the bottom of the screen is 683.0381 sq.in and 683.0934 sq.in respectively.