Drilling Calculator
Calculate RPM, feed rate, thrust force, torque, and machining time for drilling operations
Drilling Calculator
Results
Thrust = Kf·f^0.8·D | Torque = Kf·f^0.8·D²/4 | Time = depth/(f·N)
Thrust and torque are empirical estimates. Kf varies with workpiece material, drill geometry, and coating.
How to Use This Calculator
Enter your input values
Fill in all required input fields for the Drilling Calculator. Most fields include unit selectors so you can work in your preferred unit system.
Review your inputs
Double-check that all values are correct and that you have selected the right units for each field. Incorrect units are the most common source of calculation errors.
Read the results
The Drilling Calculator instantly computes the output and displays results with units. All calculations happen in your browser — no loading time and no data sent to a server.
Formula Reference
Drilling Calculator Formula
See calculator inputs for the governing equation
Variables: All variables and their units are labeled in the calculator interface above.
When to Use This Calculator
- •Use the Drilling Calculator when solving homework or exam problems that require quick numerical verification of your hand calculations.
- •Use it during the design phase to rapidly iterate on parameters before running detailed finite element simulations.
- •Use it when reviewing a colleague's calculation or checking a vendor's data sheet for plausibility.
- •Use it to generate reference data for a technical report or presentation without manual computation.
Related Calculators
Machining Parameters Calculator
Calculate cutting speed, feed rate, and MRR from diameter, RPM, feed per revolution, and depth of cut
Turning Operations Calculator
Calculate RPM, machining time, MRR, and cutting force for turning operations from workpiece geometry and cutting conditions
Tolerance Stack-Up Calculator
Calculate worst-case and RSS statistical tolerance stack-up for multiple dimensions with bilateral tolerances
Surface Finish Calculator
Calculate theoretical Ra from feed and nose radius for turning; includes typical Ra values for common manufacturing processes