Machining Calc: Speeds & Feeds

Calculate cutting speed, spindle RPM, feed rate and depth of cut for milling, turning and drilling — in seconds, right at the machine.

Machining Calc puts the everyday speeds and feeds math of the shop floor in one place. Enter your tool and cut, get the numbers, and get back to making chips.

WHY MACHINISTS USE IT
• All three core operations in one app: milling, turning and drilling
• Clear inputs and results — no digging through handbook tables
• Quick checks between setups, at the machine or at your desk
• Works on iPhone, iPad and Apple-silicon Mac
• No account, and no data collected from you

CALCULATIONS INCLUDED
Milling
• Cutting speed and spindle speed (RPM)
• Feed rate
• Depth of cut

Turning (lathe)
• Cutting speed and spindle speed (RPM)
• Feed rate
• Depth of cut

Drilling
• Cutting speed and spindle speed (RPM)
• Feed rate

Inch and metric units
Chip load / feed per tooth

WHO IT'S FOR
CNC machinists and operators, manual machinists, programmers, manufacturing and mechanical engineers, toolroom staff, apprentices and machining students.

WHY CHOOSE MACHINING CALC
It does one job — machining calculations — and keeps it simple. The free version lets you try the calculators before you decide; Premium unlocks [list exactly what Premium adds].

Results are starting points. Always confirm cutting data against your tool manufacturer's recommendations and your machine's limits.

Download Machining Calc and keep your speeds and feeds within reach.

PREMIUM
Monthly $2.99 · Yearly $5.99 · Lifetime $12.99 (one-time).
Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID settings.

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