CNC Milling Speeds & Feeds Pro

Built for machinists who verify before they cut: calculate RPM, SFM, feed, chip load, and tap drills, then save proven setups, tools, and notes for repeat jobs daily.

If you are using Milling Calcs, you are already running your shop the right way. You check the numbers before the spindle starts, you care about repeatable results, and you treat setup data like real production value. This app was built for machinists like you.

Milling Calcs is a practical CNC calculator and shop-floor reference built for milling, drilling, tapping, layout work, fabrication geometry, and setup tracking. Use it when you need fast answers at the machine, reliable setup history at the bench, and clear records for handoff across shifts.

Use it to calculate RPM, SFM, feed rate, chip load, plunge feed, material removal rate, tap drill sizes, true position, offset bends, sine bar elevation, shrinkage compensation, arc length, chord length, segment height, and more. Save useful results as structured records so proven setups are ready the next time the job returns.

Why Shops Keep This App Open

• Fast inputs and readable outputs
• Shop math that matches real setup work
• Saved setup records you can find later
• Built-in references that reduce chart hunting
• Strong iPhone workflow for machine-side checks
• Split-view support on iPad for calculator plus records
• Practical tools for both CNC and manual workflows
• Clear handoff notes for team and shift continuity

Core CNC And Machining Calculators

• Milling Job Planner with material, cutter, flute count, RPM, feed, and SFM
• Speeds and Feeds Guide for quick starting values
• Spindle Speed (RPM) calculator
• Cutting Speed (SFM) calculator
• Chip Load per Tooth calculator
• Feed per Revolution calculator
• Feed Rate calculator
• Plunge Feed calculator
• Material Removal Rate (MRR) calculator
• Tap Drill calculator
• True Position calculator
• Shrinkage Compensation calculator
• Sine Bar calculator
• Arc Length calculator
• Chord Length calculator
• Segment Height calculator

Layout, Fabrication, And Bend Tools

• Compound Offset Layout
• Straight Pipe Kick
• Conduit Offset Bend
• Parallel Offset Bend
• Concentric Bend Layout
• Conduit Saddle Bend
• Practical geometry tools for layout, fabrication, and machine setup

Records That Work Like A Shop Notebook

• Save calculations as reusable shop records
• Store title, material, machine, tool, notes, tags, and timestamps
• Keep both inputs and outputs for traceable setup history
• Search by job name, material, tool, machine, tags, or calculator type
• Sort by latest update, newest, name, material, or type
• Filter favorites, milling jobs, tools, machines, notes, and calculations
• Duplicate records for repeat jobs and part families
• Share a clean setup summary for handoff
• Review activity by date in Calendar view

Shop Library

• Save tool records
• Save machine records
• Save material records
• Save milling job records
• Save setup job records
• Save shop notes
• Save tool wear logs
• Keep key details next to the calculators you use daily

Reference Charts And Databases

• Imperial Tap Drill Table
• Metric Tap Drill Table
• Tap, Thread, and Drill Database
• Drill Size Conversion Table
• Clearance Drill reference
• Pipe Threads Table
• Thread reference database
• Decimal, Fraction, and Metric lookup
• G-Code and M-Code reference
• Material Machinability database
• Speeds and Feeds database
• Tooling database
• CNC Machine reference
• Search across reference records for faster lookup

Milling Calcs does not replace machining judgment, tooling data, or experience. It gives you practical starting points, repeatable math, and searchable records so your best setup work is easier to repeat.

For monthly subscriptions: Monthly Pro is a 1-month auto-renewable subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Always confirm final cutting data against your tooling manufacturer, machine rigidity, workholding, coolant, material condition, depth of cut, and actual cut conditions.