SpeedFeed Machinist Calculator

The cutter is in the holder, the material is clamped, and you need an RPM you can trust. Two taps and it is on the screen. SpeedFeed is a speeds and feeds calculator built for the moment you are standing at the machine — not for a desk, and not for a browser full of ads and cookie banners. Diameter, material, done. Spindle speed, feed rate and feed per revolution, all on one screen with nothing to scroll past. WHY IT EARNS A PLACE ON YOUR HOME SCREEN One screen, no button. There is no Calculate to hunt for. The numbers move as you type. It tells you when you are out of range. Every material carries a real surface speed band for carbide and for HSS, and the app flags it when your number falls outside — so a mistyped digit does not become a snapped cutter. It works backwards. Inherited a program and want to know what it is really running? Enter the RPM and feed from the control and get the surface speed and chip load back. It works in your units. Inch with SFM and IPM, or millimetres with metres per minute, on one tap. Nothing to re-enter. It is built for gloves. Big plus and minus targets on every field. Nothing to pinch, nothing to drag. It remembers the job. Reopen it and your material, diameter, speeds, flute count and tool note are exactly where you left them. WHAT IT DELIBERATELY IS NOT Not a suite. No G-code, no trig, no bolt circles, no vendor tool libraries. One calculation, done properly and done fast. Not a subscription. One payment and that is the end of it. No account, no sign-in, no ads, no analytics and no network calls at all — it behaves exactly the same in a shop with two feet of concrete overhead. The cutting data is a conservative starting point, not a replacement for your tooling manufacturer's figures. Check it against your cutter, your setup and your machine before you cut.