Aluminum Machining Calculators and Charts
The numbers we look up most often, in one place. Free, no sign up, no form in front of them.
Anodize growth calculator
Work out how much a Type II or Type III coating closes a bore, grows a shaft and eats your fit tolerance.
Surface finish conversion chart
Ra, Rz, RMS and ISO N-grade side by side, with what each band costs to reach on aluminum.
Aluminum alloy selector
Filter the common machining alloys by weldability, anodizing, corrosion, strength and flatness.
Stock and weight calculator
Block weight, finished weight and how much of the billet you are paying to turn into swarf.
These run entirely in your browser. Nothing you type is sent anywhere. Figures are typical published values, checked against the standards listed in editorial standards, and are not a guarantee for your part.
Got the numbers, need the part?
Send the drawing and we match it with up to 3 shops that cut aluminum. Free for buyers, reply within 24 business hours.