Drill Feeds and Speeds Calculator

You’ve found our simple free online Drill Feeds and Speeds Calculator that uses the classic formulas taught in shop class.  With a calculator, you don’t need to worry about how to calculate feed rate for drillling, or the speed (rpms) either.  Just key in the parameters and our calculator will find the answer for you.

We offer both that free online drill feeds and speeds calculator using simple shop formulas, and also a free (for a limited time) full-featured calculator that is the industry leading speeds and feeds calculator.  It’s used daily by thousands of the world’s best manufacturers.

They know what they’re doing and wouldn’t waste time or money if the software didn’t work.

The thing is, why use that simple free calculator when you could grab our full-featured G-Wizard Feeds and Speeds Calculator completely free for 30-days?

feed rate calculator

How do you lose with that deal?

It takes just 37 seconds to download and start using G-Wizard.  It costs you nothing and you can get great feeds and speeds from it for the next 30 days.  If you want to go back to our free online calculator after that, no worries.

But you may as well drive the high performance model as long as it’s free, right?

G-Wizard Has Features for Each Machine Type

Still not convinced?  Consider that G-Wizard has specific features for each machine type.  In effect, you get 3 Calculators in one:

Click through each of those to see features tailored by machine type.

Or, just use our simple online drill speeds and feeds calculator below:

End Mill Speeds and Feeds Calculator

Milling Feeds and Speeds

Spindle Speed Calculator

Tool Diameter > inches

Surface Speed: SFM (see table below for SFM values)

Spindle Speed: > RPM

Spindle RPM Formula = (12 * SurfacceSpeed) / (PI * CutterDiameter)

Feed Rate Calculator

Spindle Speed: > RPM

Feed/Tooth (Chipload): > IPT (inches / tooth)

Number of Flutes (Teeth): >

Feed Rate: IPM (inches / minute)

Feed Rate Formula = Chipload * NumberFlutes * RPM

Drilling Surface Speeds for HSS Twist Drills
Surface Speed (SFM)
Aluminum - Wrought (6061) 250
Brass 200
Cast Iron - Ductile 80
Cast Iron - Gray 120
Copper Alloy - Wrought 70
Magnesium Alloy 250
Stainless Steel 30
Steel - Mild 110
Steel - Hard Alloy 60
Steel - Tool 60
Drilling Chiploads for HSS End Mills
Chipload (IPT)
Aluminum - Wrought (6061) 0.005 - 0.010
Brass 0.005 - 0.010
Cast Iron - Ductile 0.004 - 0.008
Cast Iron - Gray 0.002 - 0.006
Copper Alloy - Wrought 0.004 - 0.008
Magnesium Alloy 0.005 - 0.010
Stainless Steel 0.002 - 0.006
Steel - Mild 0.002 - 0.010
Steel - Hard Alloy 0.002 - 0.006
Steel - Tool 0.002 - 0.006

Note: Chipload should be adjusted for hole depth. Deeper holes tolerate much lower chip loads! You can look this up in the manufacturer's catalog, or we can help.

Not Sure the Correct Value for Your Cutter? We Can Help!

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Speeds and Feeds for:

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How to Calculate Feed Rate for Drilling?

Wondering how to calculate feed rate for drilling?  Perhaps so you can create your own spreadsheet?

The basic feed rate formulas for drilling are simple, but getting real-world feeds and speeds are quite a bit harder.  We give you all the basic formulas in our free online Feeds and Speeds Course.

Want all the best tips and techniques for Twist Drills?  Read our Twist Drill and Hole Making Guide here.

Awesome! 2 Free Online Drill Feeds and Speeds Calculators [2018 Updates]
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