Table Saw Kerf Loss Calculator
Every cut removes a sliver of wood equal to your blade's kerf width. Over dozens of cuts on a big project, that adds up to real board footage lost. Enter your cut count, kerf width, and board length to see the total waste and whether you need to buy extra stock.
About this calculator
Calculate how much usable material you lose to saw blade kerf across multiple cuts, and how many extra boards you need to compensate.
Frequently Asked Questions
What is saw kerf?
Kerf is the width of material removed by the blade as it cuts, typically 1/8 inch for standard table saw blades and thinner for thin-kerf blades.
How do I reduce kerf loss?
Use a thin-kerf blade, plan cut layouts carefully to minimize the number of cuts, and nest parts efficiently on your stock.
Does kerf loss really matter?
On small projects it's negligible, but on projects with many repeated cuts (like slats, strips, or dovetails) it can add up to a full extra board or more.