Metal Finishing Time Calculator
Estimate the total time to hand-finish a metal piece through a grit progression from coarse to fine, accounting for surface area and finish type.
Inputs
sq in
Results
Estimated Total Time
0.11 hours
Total Minutes6 min
Grit Steps8
Finish TypeSatin
Starting Grit80
Ending Grit800
How to Use This Calculator
- Enter the surface area (sq in) of the piece to be finished.
- Set the starting grit — match this to the deepest scratches or forge scale you need to remove.
- Set the ending grit to match your desired finish: 400 = working finish, 1500–2000 = near mirror.
- Select finish type: Satin, Mirror Polish, or Patina to adjust total time estimate.
- Review Total Finishing Time and Time per Grit Step to plan your finishing sessions efficiently.
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